IDS GeoRadar s r l IBIS LS User Manual

- PRO/010/M1 Rev 4 -

INGEGNERIA DEI SISTEMI S.p.A.

ev. 1.1

N°doc: MN/2009/070

Config.: IBIS-L -PRCS-OUT-MN

IBIS-L system

Image By Interferometric Survey - L

IBIS-L v.02.00 -

User manual

Pisa, June 2010

Tot pag. N°. = 65

IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1

(see

IBIS-L v.02.00 - User manual

KEY WORDS:

IBIS-L, RADAR, INTERFEROMETER, INSTALLATION, MAINTENANCE

SUMMARY:

User and maintenance manual for the IBIS-L system. This document illustrates the installation procedure for the linear scanner and IBIS-L sensor and the acquisition start up procedure.

Document Evolution

Revision Date Reason for change

Rev. 1.0 October 2009 First Edition with Battery information according to DL 188

dated 20/11/2008

Rev. 1.1 June 2010 Document revision for Declarations for US and Canada

RNC 201005097)

Document change record

RNC References Change description

201005097 Before index Declarations for US and Canadian customers

HW and SW versions covered by this document

IBIS-L system, IBIS-L Controller software v. 02.00.002.

Warning

IDS will not be held responsible for the consequences of an improper use of the equipment. IDS will not be held responsible for the consequences of an improper use of the software. All information contained in this document is property of IDS

Contacts

IDS Ingegneria Dei Sistemi S.p.A.

Via Sterpulino, 20 56121 PISA (Loc. Ospedaletto)

Tel: +3905096711 Fax: +39050961721

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1

CONSEQUENCES

OR THE

CURACY OF

THEY MUST

LLIGENT

ED AS AN

RELY ON THE

IDS INGEGNERIA DEI SISTEMI SPA ASSUMES NO LIABILITY FOR

ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OR INJURIES CAUSED BY SUCH

RELIANCE ON THE ACCURACY, RELIABILITY, OR TIMELESS OF

ANY PERSON OR ENTITY WHO RELIES ON INFORMATION

OBTAINED FROM THE AUTOMATED DATA

, DOES SO AT HIS OR HER

IBIS-L v.02.00 - User manual

DISCLAIMER

IDS WILL NOT BE HELD RESPONSIBLE FOR THE OF AN IMPROPER USE OF THE EQUIPMENT AND/ SOFTWARE.

THIS SOFTWARE MAY INCLUDE AUTOMATED DATA PROCESSING AND ANALYSIS TOOLS.

WHILE EVERY EFFORT IS MADE TO ENSURE THE AC THE INFORMATION PROVIDED BY THOSE TOOLS, NOT BE INTENDED AS A SUBSTITUTE FOR INTE ANALYSIS; RATHER, THEY HAVE TO BE INTEND ADVISOR AND THE USER MUST NOT COMPLETELY RESULTS PROVIDED BY THEM TO GIVE THE COMPLETE ANSWER.

THE INFORMATION PROVIDED BY THOSE TOOLS.

PROCESSING/ANALYSIS TOOLS ONLY OWN RISK.

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SAFETY INFORMATION

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1

environments

(Class A apparatus). In residential, commercial and light industry

environments, this apparatus may generate radio interference: in this case,

the user may be required to operate while taking appropriate

tive to the presence of external electromagnetic fields,

IBIS-L v.02.00 - User manual

Warning: this equipment is destined for use in industrial

countermeasures. The apparatus is sensi

which may reduce its performance.

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IMPORTANT NOTE FOR THE US CUSTOMERS

Model No.: IBIS-KU FCC ID: UFW-IBIS-KU This device complies with part 90 of the FCC Rules. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your

authority to operate this equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This

equipment should be installed and operated with minimum 20 cm between the radiator and your body. This transmitter must not be collocated or operating in conjunction with any other antenna or transmitter unless authorized to do so by the FCC.

Model No.: IBIS-SU-STD , IBIS-SU-ADV FCC ID: UFW-IBIS-SU-M This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This

device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment.

Model No.: IBIS-LS FCC ID: UFW-IBIS-LS This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This

device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment.

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1 IBIS-L v.02.00 - User manual

IMPORTANT NOTE FOR THE CANADIAN CUSTOMERS

Model No.: IBIS-KU IC ID: 8991A-IBISKU This device has been designed to operate with the antennas listed below, and having a maximum gain of 22 dB.

Antennas not included in this list or having a gain greater than 22 dB are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.

IBIS-ANT1-H38V18 IBIS-ANT2-H29V25 IBIS-ANT3-H17V15 IBIS-ANT4-H11V10 IBIS-ANT5-H12V39 IBIS-ANT6-H51V20

Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication.

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1

Before cleaning any external parts of the apparatus, make sure

that all cables have been disconnected, including the power

sure it is not too wet,

to avoid any damage to the electrical components of the

equipment. Wait until the equipment is totally dry before

Do not apply liquid directly to the electrical contacts of the

If a specific spray is used to clean the PC

n any case, do not

nto the cleaning

IBIS-L v.02.00 - User manual

WARNING

CLEANING INFORMATION

supply cable. If a damp cloth is used, make

reconnecting the cables. The IBIS-L should be cleaned periodically using a damp cloth. Do not use solvents or abrasive detergents.

various connectors. TFT monitor, make sure it is not flammable; i spray it directly on the screen, instead, spray it o cloth.

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NOTE

IBIS-L v.02.00 - User manual

BATTERIES REMOVAL INFORMATION

: Batteries must be recycled according to national regulations. Read

carefully the warnings and information on the batteries.

Laptop Batteries

: Manufacturer: PANASONIC Type: Li-ion Ni Characteristics: 10.65V 5.7Ah Removal instructions:

1. turn off the laptop;

2. open the drawer marked with the battery symbol;

3. extract the battery pack by pulling the tab.

Radar batteries

Manufacturer: ENERSYS GENESIS EP

Type: rechargeable lead acid, non spillable batteries

Characteristics: 12V & 70Ah Removal instructions:

1. open the front door of the power supply module;

2. disconnect the connectors (A);

3. open the retaining belt (B);

4. extract the batteries (C).

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1 IBIS-L v.02.00 - User manual

RECICLYING

The crossed out wheeled bin symbol shown on the equipment indicates that the product must be recycled separately from other waste at the end of its useful life.

Separate waste disposal of this product at the end of its useful life will be organised and managed by IDS. When you decide to dispose of the equipment, contact IDS and follow the system that IDS has set up to permit the separate collection of the apparatus at its life end.

Adequate separate collection for its subsequent recycling, treatment and environmental friendly disposal contribute towards avoiding any unnecessary effects on the environment and to health and favour the reuse or recycling of the materials that make up the equipment. Unauthorised disposal of this product as unsorted waste by its possessor will lead to an administrative penalty foreseen by national regulations.

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WARRANTY CERTIFICATE CONDITIONS

1) IDS Ingegneria dei Sistemi S.p.A, hereinafter referred to as IDS, warrants hardware/software

products for a period of 12 months from the delivery date to the original customer;

2) The delivery date is certified by the “Warranty Registration Form”;

3) IDS’s hardware products will be free from defects in materials workmanship under normal use and

service;

4) IDS’s obligation is limited to repairing or replacing parts or equipment which are returned to IDS,

without alteration or further damage, and which in IDS s judgment, were defective or became defective during normal use;

5) IDS’ software will have to be installed on a PC according to the requirement of the IDS hardware (

see IDS User’s Guide the Software Data Acquisition);

6) IDS’ s software products designed by IDS for use for IDS hardware products are warranted not to

fail to execute their programming instructions due to defects during the warranty period, provided they are properly installed on IDS hardware products. IDS does not warrant if the IDS software will be used and operated in hardware and software combinations not selected by IDS;

7) IDS does not assumes any liability for any direct, indirect, special, incidental or consequential

damages or injuries caused by proper or improper operation of its equipment whether defective or not defective;

8) This software may include automated data processing and analysis tools. While every effort is made

to ensure the accuracy of the information provided by those tools, they must not be intended as a substitute for intelligent analysis; rather, they have to be intended as an advisor and the user must not completely rely on the results provided by them to give the complete answer. IDS assumes no liability for any direct, indirect special, incidental or consequential damages or injuries caused by such reliance on the accuracy, reliability, or timeliness of the information provided by those tools. Any person or entity who relies on information obtained from the automated data processing/analysis tools only, does so at his or her own risk;

9) IDS’s warranty does not extend and shall not apply to: a) Products which have been repaired or altered by other than IDS personnel; b) Products which have been subjected to misuse, neglect, accident or improper installation; c) Products in which have been installed Hardware/Software accessories not supplied by IDS

and/or without any approval by IDS;

d) Products which have been connected to equipment different from the ones supplied by IDS

(except the PC data Logger which must conform to IDS specifications;

e) Products which have been damaged by natural disaster or calamities.

10) Before returning any equipment to IDS , you have to contact the IDS Customer Care Office that will authorize you to return the material to be repaired;

11) Once the parts/equipment to be repaired arrive to IDS, IDS may inspect the defective products to verify they are eligible for repair or replacement. All packing must be saved for inspection purpose in order to assist IDS to understand the cause of the defects. IDS, will not be obliged to repair, or replace for products returned as defective but damaged from abuse, misuse, negligence , accident loss or damage in transit;

12) The final clients, is responsible for ensuring the defective products returned to be properly packaged;

13) The above warranty are sole and exclusive, and no other warranty, whether written or oral, is expressed or implied.

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IDS Ingegneria Dei Sistemi S.p.A. N°doc: MN/2009/070 - Rev. 1.1 IBIS-L v.02.00 - User manual

INDEX

1. Introduction........................................................................................................................... 16

1.1 Aim................................................................................................................................. 16

1.2 Field of application........................................................................................................16

1.3 Authorisation for use – national restriction.................................................................. 16

1.4 CE Marking ...................................................................................................................17

1.5 Acronyms and Definitions..............................................................................................17

1.5.1 Acronyms.......................................................................................................................17

1.5.2 Definitions......................................................................................................................17

2. Overview.................................................................................................................................18

2.1 How to use this manual..................................................................................................18

2.2 General description....................................................................................................... 18

2.3 Pack contents................................................................................................................. 21

3. IBIS-L system hardware configuration............................................................................... 26

3.1 IBIS sensor..................................................................................................................... 26

3.2 Antennas ........................................................................................................................27

3.2.1 Ku band system antennas ...............................................................................................27

3.2.2 X band system antennas .................................................................................................30

3.3 Linear Scanner...............................................................................................................31

3.4 Installation kit................................................................................................................ 34

3.5 Power supply module..................................................................................................... 35

3.6 Control and acquisition PC........................................................................................... 39

3.7 Connection cable kit...................................................................................................... 40

4. IBIS-L system installation procedure.................................................................................. 42

4.1 Installation of the linear scanner................................................................................... 42

4.1.1 Material required............................................................................................................42

4.1.2 Preparing the anchor points for the linear scanner .........................................................47

4.1.3 Mounting the linear scanner...........................................................................................49

4.2 Installation of the IBIS sensor and module connection................................................. 52

4.3 Dismantling the measurement site................................................................................. 56

5. First start up.......................................................................................................................... 57

6. Useful Tips..............................................................................................................................59

6.1 Installation..................................................................................................................... 59

6.2 Use................................................................................................................................. 60

6.3 Dismantling ...................................................................................................................60

7. Maintenance........................................................................................................................... 61

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7.1 Maintenance of the module base................................................................................... 61

7.2 Maintenance of the movement system............................................................................61

7.3 General maintenance of the module.............................................................................. 61

Appendix A - Technical specifications.....................................................................................62

A.1 Linear scanner...............................................................................................................62

A.2 IBIS sensor.................................................................................................................... 62

A.3 Power supply module.................................................................................................... 62

A.4 Panasonic CF-19 Notebook PC.................................................................................... 63

Appendix B - Elements of radar technology........................................................................... 64

B.1 Antenna beam................................................................................................................ 64

FIGURES INDEX

FIG. 2.1 – INSTRUMENT INSTALLED AT THE CHIES D’ALPAGO TO MONITOR THE TESSINA

VALLEY LANDSLIDE (BL).............................................................................................................20

FIG. 2.2 – IBIS-L BOX ................................................................................................................................21

FIG. 2.3 – IBIS-L CASE ..............................................................................................................................22

FIG. 2.4 – POWER SUPPLY MODULE.....................................................................................................25

FIG. 3.1 – IBIS SENSOR .............................................................................................................................26

FIG. 3.2 – BACK (A) AND FRONT (B) VIEW OF THE SENSOR ...........................................................27

FIG. 3.3 – BOTTOM VIEW OF SENSOR ..................................................................................................27

FIG. 3.4 – IBIS-H20 VERTICAL PLANE PATTERN................................................................................28

FIG. 3.5 – IBIS-H20 HORIZONTAL PLANE PATTERN..........................................................................28

FIG. 3.6 – IBIS-H20 ANTENNA .................................................................................................................28

FIG. 3.7 –IBIS-H23 VERTICAL PLANE PATTERN.................................................................................29

FIG. 3.8 –IBIS-H15 HORIZONTAL PLANE PATTERN...........................................................................29

FIG. 3.9 – IBIS-H15 VERTICAL PLANE PATTERN................................................................................29

FIG. 3.10 – IBIS-H15 HORIZONTAL PLANE PATTERN........................................................................29

FIG. 3.11 – IBIS-H13 VERTICAL PLANE PATTERN..............................................................................29

FIG. 3.12 – IBIS-H13 HORIZONTAL PLANE PATTERN........................................................................29

FIG. 3.13 –X BAND ANTENNA VERTICAL PLANE PATTERN ...........................................................30

FIG. 3.14 – X BAND ANTENNA HORIZONTAL PLANE PATTERN ....................................................30

FIG. 3.15 – INSTALLED LINEAR SCANNER..........................................................................................31

FIG. 3.16 – BACK OF LINEAR SCANNER...............................................................................................32

FIG. 3.17 – FRONTAL VIEW OF THE SYSTEM FOR FIXING THE LINEAR SCANNER WITH

DETAILS OF (A) THE POSITIONING FORK, (B) HOUSING OF THE SPHERE WITH THE

SPHERE INSERTED AND (C) THE TWO SUPPORT STUDS .......................................................33

FIG. 3.18 – VIEW OF THE DRILLING AND POSITIONING TEMPLATE WITH SPACER .................34

FIG. 3.19 – ELEMENTS FOR ANCHORING THE LINEAR SCANNER.................................................34

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FIG. 3.20 – FRONT (LEFT) AND BACK (RIGHT) VIEW OF THE POWER SUPPLY MODULE. NOTE

THE HANDLES, TWO WHEELS AND THREE LOCKABLE DOORS .........................................35

FIG. 3.21 - SEQUENCE FOR UNFOLDING THE POWER SUPPLY UNIT HANDLES.........................36

FIG. 3.22 –THE NOTEBOOK PC TABLE..................................................................................................36

FIG. 3.23 - THE POWER SUPPLY MODULE SWITCHBOARD .............................................................37

FIG. 3.24 - (A) BATTERY HOUSING AREA, (B) POWER SUPPLY MODULE CONNECTOR AREA

WITH THE GROUND SCREW HIGHLIGHTED.............................................................................38

FIG. 3.25 – PANASONIC CF-19 PC...........................................................................................................40

FIG. 3.26 – SCHEMATIC DIAGRAM OF CONNECTIONS.....................................................................41

FIG. 4.1 - OPENED IBIS-L BOX ................................................................................................................43

FIG. 4.2 – WING NUTS FIXING THE LINEAR SCANNER ....................................................................43

FIG. 4.3 – (A) POINTING SYSTEM, (B) DEM SPACERS (C) TEMPLATE SPACER............................44

FIG. 4.4 – SEQUENCE FOR REMOVING THE ELEVATION POINTING SYSTEM ............................44

FIG. 4.5 – IBIS-L CASE ..............................................................................................................................45

FIG. 4.6 – IBIS-L CASE - INTERNAL VIEW............................................................................................46

FIG. 4.7 – IBIS-L CASE - INTERNAL VIEW............................................................................................46

FIG. 4.8 – VIEW OF THE TEMPLATE PLACED ON THE BASE...........................................................47

FIG. 4.9 – MOUNTING THE STUDS ON THE TEMPLATE, DETAIL OF THE CENTRAL PLATE

WITH THE SPACER AND ITS TWO STUDS .................................................................................48

FIG. 4.10 – RESIN INJECTION OPERATION...........................................................................................48

FIG. 4.11 – MOUNTING THE BASE WASHERS .....................................................................................49

FIG. 4.12 – THE CORRECTLY INSTALLED POSITIONING FORK ......................................................50

FIG. 4.13 – SEQUENCE FOR MOUNTING THE SPHERICAL THRUST BEARINGS ..........................50

FIG. 4.14 – MOUNTING THE FIXING PLATE TO THE SPHERICAL HOUSING ................................50

FIG. 4.15 – CONTACT BETWEEN THE SPHERICAL HOUSING AND THE SPHERE. LEFT SHOWS

THE CORRECT POSITION, CENTRE SHOWS THE SPHERE POSITION TOO HIGH, RIGHT

SHOWS THE SPHERE TOUCHING THE BOTTOM OF THE HOUSING ....................................51

FIG. 4.16 – STEPS 16 TO 18 .......................................................................................................................52

FIG. 4.17 - POSITIONING THE ELEVATION POINTING SYSTEM ONTO THE LINEAR SCANNER53 FIG. 4.18 – CORRECTLY INSTALLED ELEVATION POINTING SYSTEM (A) WITHOUT AND (B)

WITH THE DEM SPACERS .............................................................................................................53

FIG. 4.19 - LEFT AND CENTRE: DETAIL OF THE IBIS SENSOR CONNECTOR. RIGHT: TWO

PROTECTIVE CAPS FOR THE CONNECTORS.............................................................................54

FIG. 4.20 – CONNECTIONS BETWEEN IBIS SENSOR - LINEAR SCANNER –POWER SUPPLY

MODULE -PC ....................................................................................................................................55

FIG. 4.21 – FULLY INSTALLED IBIS-L SYSTEM ..................................................................................55

FIG. 5.1 - OPENING WINDOW OF THE CONTROL AND ACQUISITION SOFTWARE.....................57

FIG. 5.2 – THE CONFIGURATION PANEL..............................................................................................58

FIG. B. 1 – SCHEMATIC DIAGRAM OF THE ANTENNA BEAM.........................................................64

FIG. B. 2 – AREA OF THE SCENARIO COVERED BY THE ANTENNA BEAM MAIN LOBE. .........65

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TABLES INDEX

TAB. 2.1 – CONTENTS OF THE IBIS-L BOX ..........................................................................................21

TAB. 2.2 – CONTENTS OF THE IBIS-L CASE ........................................................................................25

TAB. 3.1 – WIDTH OF THE MAIN LOBES OF THE IBIS-H20 ANTENNAS AT -3 DB AND -10 DB.27

TAB. 3.2 – KU BAND ANTENNAS CHARACTERISTICS......................................................................30

TAB. 3.3 – WIDTH OF THE MAIN LOBES OF THE X BAND ANTENNAS AT -3 DB AND -10 DB .30

TAB. 3.4 – PROCEDURE FOR SETTING THE VOLTAGE.....................................................................39

TAB. 7.1 – SUMMARY TABLE OF ORDINARY MAINTENANCE ACTIONS.....................................61

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IBIS-L v.02.00 - User manual

1. INTRODUCTION

This document describes the IBIS-L system (Image By Interferometric Survey -L), with particular reference to the concepts the user should learn before starting to use this device. Therefore we recommend to read the entire document before starting up the system.

If technical assistance is required, please use the contact numbers provided on page 3 of this manual.

1.1 Aim

Reading this document will provide the operator with all the necessary knowledge to install and maintain the IBIS-L system. In particular, it provides a step by step procedure for installation of the system, information for the safe use of the system and instructions for general maintenance.

1.2 Field of application

This document applies to the installation of the IBIS system in -L configuration and its use in the field for monitoring of quasi static phenomena.

1.3 Authorisation for use – national restriction

European countries

IBIS-L system has been classified from the CEPT Administrations as SRD – Short Range Device - i.e. a device that doesn’t cause interference to other systems operating in the same frequency band. IBIS-L has so been included (as Ground Based SAR) in the ERC/REC 70-03 that defines the SRD equipment.

For Ku band system

In the meanwhile that all the European countries update their national frequency allocation table applying the new recommendation, currently the use of IBIS-L system outside a laboratory can be still subject to authorisation by the Competent Ministry of the country where the system should be used. Please refer to the Competent Ministry of the country where the system should be used to know whether there is still the need of an authorisation or not.

For X band system

Almost all the European countries have applied the ERC/REC 70-03 for the X band system. Please refer to the Competent Ministry of the country where the system should be used to know if there are some limitations in the use of X band IBIS-L equipment or not.

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IBIS-L v.02.00 - User manual

1.4 CE Marking

This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

The full Declaration of Conformity can be found either on the CD or a separate document included with this product

This is a Class A product. In a domestic environment it may cause radio interference, in which case the user may be required to take adequate measures.

1.5 Acronyms and Definitions

1.5.1 Acronyms

DEM Digital Elevation Model IBIS Image By Interferometric Survey SAR Synthetic Aperture Radar SF-CW Stepped Frequencies - Continuous Wave

1.5.2 Definitions

Range Bin area of resolution in distance used in the IBIS-S system. Pixel area of resolution used in the IBIS-L system. Radial displacement displacement of the range bin or the pixel along the direction

joining the Range bin or pixel to the IBIS system i.e. along the LOS – Line of Sight.

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IBIS-L v.02.00 - User manual

2. OVERVIEW

This manual describes the operations that the user must perform to set up and use the IBIS-L system.

2.1 How to use this manual

This manual consists of the following chapters:

• Chapter 1 - Introduction

• Chapter 2 - Overview

• Chapter 3 - IBIS-L system hardware configuration

• Chapter 4 - IBIS-L system installation procedure

• Chapter 5 - First start up

• Chapter 6 - Useful Tips

• Chapter 7 - Maintenance

• Appendix A - Technical specifications

• Appendix B - Elements of radar technology

2.2 General description

The IBIS-L system is designed to remotely measure slow displacements with an accuracy as great as a tenth of a millimetre. The IBIS-L system is particularly suitable for terrain and structural monitoring applications, with the aim of detecting quasi-static displacements over long time periods.

The performance of the IBIS-L system depends on the type of configuration used and on the operative measurement conditions (above all related to the reflectivity of the area under investigation); however, the best performance characteristics can be defined as follows:

For Ku band system:

 Maximum operational distance: 4000m;  Image resolution in distance: 0.75m;  Angular resolution: 4.3mrad;  Accuracy in measuring displacements in the viewing direction: 0.1 mm (for

points with a good reflectivity - SNR>50dB – and depending on the impact of atmospheric variation on the measure).

For X band system:

 Maximum operational distance: 4000m;  Image resolution in distance: 1.5m;  Angular resolution: 7.1mrad.  Accuracy in measuring displacements in the viewing direction: 0.1 mm (for

points with a good reflectivity - SNR>50dB – and depending on the impact of atmospheric variation on the measure).

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The time required for instrument installation is about 2h. The instrument has been specifically conceived for outdoor use and is equipped with an

installation system designed to guarantee high precision when repositioning it at a later date. This is important to enable measurements to be performed over time without needing to leave the instrument on-site.

The IBIS-L system offers the following advantages over currently available monitoring systems (GPS, extensometers):

 Permits the operator to perform remote monitoring of the area (remote sensing),

without the need to access the area to install sensors or optical targets;

 Supplies a continuous displacement map of the entire area. The IBIS-L system

simultaneously measures all the displacements of the entire area illuminated by the antenna beam, which can cover as much as hundreds of thousands of square meters;

 Directly measure the displacements of the territory of interest in near real time;  It can be used both day and night and in almost all weather conditions;  It doesn’t require the continuous presence of an operator and can be controlled by

wireless connection.

This possibility of also performing long distance monitoring, with no need to install sensors means that investigations can be performed even when:

 the area of interest is not accessible;  the area of interest is particularly large and therefore would require many in situ

sensors;

In addition, when the monitoring activity is required to assure people’s safety in emergency situations, the possibility of performing remote monitoring may be essential for protecting lives.

Fig. 2.1 shows the composition of IBIS-L system. The main components are:

o Sensor module: this generates, transmits and receives the electromagnetic signal.

The sensor module is installed on the linear scanner: movement of the sensor on the linear scanner permits the use of the SAR technique to obtain a two dimensional image of the scenario. This module has a USB interface for connection with the control PC and an interface to the positioning module;

o Linear Scanner, consisting of a 2.5 metre long aluminium track, along which a

slide is moved under the control of a step by step motor;

o The control PC, installed with the system management software. This is used to

configure the acquisition parameters, manage measurements and view the results in real time;

o Power supply: this supplies power to the system through a battery unit or

connection to an external energy supply.

A detailed description of each component is reported in paragraph 3.

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Power supply module

IBIS-L sensor

Linear Scanner

Control & acquisition

notebook

IBIS-L v.02.00 - User manual

Fig. 2.1 – Instrument installed at the Chies d’Alpago to monitor the Tessina valley landslide

(BL)

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+ 45 hidden pages

IDS GeoRadar s r l IBIS LS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual