Tektronix RADAR Primary User

Radar

ZZZ

Plug-in Application

Printable Help Document

*P077135501*

077-1355-01

Radar Plug-in Application

ZZZ

Printable Help Document

w.tek.com

077-1355-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published m aterial. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

SourceXpress

is a registered trademark of Tektronix, Inc.

Microsoft and Windows are registered trademarks of Microsoft Corporation.

Supports the Radar Plug-in Version 3.1.x and above.

Help part number: 076–0410–01

PDF of Help system part number: 077–1355–01

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P. O . B o x 50 0

rton, OR 97077

Beave USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200. Worldwide, visit ww w.tek.com to ﬁnd contacts in your area.

Table of Contents

Introduction

Welcome............................................................................................................. 1

Key features ......................................................................................................... 2

Documentation......................................... ................................ ............................. 3

Support information....... .................................. ................................ ....................... 3

Orientation

Elements of the display ............................................................................................ 5

Plug-in selection ....................................... ................................ ............................. 5

Signal Format selection........... ................................ ................................ ................. 6

Compile button..................... ................................ ................................ ................. 6

Reset Plug-in button....... ................................ ................................ ........................ 12

Help button............... .................................. ................................ ........................ 12

Table of Contents

Pulse Train

Pulse Train tab ........... ................................ ................................ .......................... 13

Pulse Train list and menu ......................................................................................... 13

Pulse train table .................................................................................................... 16

Common parameters .............................................................................................. 18

Pulse Envelope

Pulse Envelope tab ................................................................................................ 19

Modulation

Modulation tab..................................................................................................... 23

Modulation settings ............................................................................................... 23

PRBS Editor

PRBS Editor........................................................................................................ 33

Offsets

Offsets tab .................................. ................................ ................................ ........ 35

Staggered PRI

Staggered PRI tab.................................................................................................. 37

Pulse Impairments

Pulse Impairments tab......................... .................................. ................................ .. 41

Radar Printable Help Document i

Table of Contents

IQ Impairments

IQ Impairments tab.................. ................................ .................................. ............ 43

MultiPath

Multipath tab ............................... .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 45

Interference Addition

Interference Addition tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 47

Hopping

Hopping tab .......................... .................................. ................................ ............ 49

Antenna

Antenna tab......................................................................................................... 53

S-Parameter tab

S-Parameter license ............................................................................................... 57

S-Parameter tab ...................... .................................. ................................ ............ 57

S-Parameter ﬁle descriptions ........................................ ................................ ........ 61

Aggressor signals ............................................................................................. 62

Licensing

Licensing ........................................................................................................... 65

Index

ii Radar Printable Help Document

Introduction Welcom e

Welcome

The Radar plug-in is a waveform creation application that is used to create/build pulse(s) and simulate complex test patterns used to test radar receivers. It also allows you to simulate multiple targets.

The Radar plug-in is designed to integrate and operate seamlessly as an enhancement to the following products:

SourceXpress waveform creation software

AWG70000 series arbitrary waveform generators

AWG5200 series arbitrary waveform generators

Once installed, the plug-in becomes available as another waveform plug-in application.

This illu is identical whether it is used from SourceXpress or installed on a generator.

stration shows the Radar plug-in viewed from the SourceXpress application. The plug-in interface

Radar Printable Help Document 1

Introduction Key features

Key features

Deﬁne multiple pulse trains that can be assigned to different channels for applications like simulating phase array ra dars and creating scenarios to test EW receivers.

Deﬁne multiple pulse group(s) or dead time for each pulse train.

Each pulse group can be independently set up to have different pulse shapes, pulse modulation, offsets, hopping, noise and other features.

Modulation types supported include LFM, Piecewise LFM, Chirp Sequence, Custom Modulation, Barker codes, and many others.

Deﬁne frequency, phase and amplitude offsets (constant and variable) across pulses in the pulse group.

Apply noise on entire pulse, including Off time or just on the Pulse On time.

Deﬁne f

Provide S-parameter emulation of RF and baseband components.

requency hopping.

2 Radar Printable Help Document

Introduction Documentation

Documentation

In addition to this application Help system, the following documentation is available for the software.

All documentation is available on the Tektronix Web site (www.tek.com/manual/downloads

To read about Use these documents

Radar plug-in operation and user interface help Access the plug-in application help from the plug-in Help menu for

information on all controls and elements on screen.

The Radar plug-in help system is also available in PDF format located in the program’s installation folder and also available on the Tektronix web site.

Radar plug-in programmer commands

SourceXpress operation and user interface help Access the SourceXpress application help from the Help menu for

SourceXpress programmer commands Access the SourceXpress programmer manual for the syntax of remote

Connected instrument operation and user interface help (such as an AWG70000 series generator)

Access the plug-in programmer manual for the syntax of remote commands speciﬁc to the plug-in.

This is available on the Tektronix web site.

information on all controls and elements on screen.

The SourceXpress help system is also available in PDF format, available on the Tektronix web site.

commands.

This document is available in PDF format located in the program’s installation folder and also available on the Tektronix web site.

For operation and interface help of a connected instrument, r efer to the instrument’s documentation.

This is available with the instrument or on the Tektronix web site.

Connected instrument programmer commands (such as an AWG70000 series generator)

xxx

Support information

Tektronix offers the following services in support of their products:

chnical Support. For application-related questions about a Tektronix product, contact us by

telephone or email ).

ervice Support. For service-related questions about a Tektronix product, contact us by telephone

or email ).

Tektronix also offers extended warranty and calibration programs as options on many products. Contact your local Tektronix distributor or sales ofﬁce.

For programming information of a connected instrument, refer to the instrument’s documentation. This is available with the instrument or on the Tektronix web site.

Radar Printable Help Document 3

Introduction Support information

4 Radar Printable Help Document

Orientation Elements of the display

Elements of the display

The main areas of the application window are shown in the following ﬁgure.

Plug-in selection

UsethePlug-inpull-downmenutoselecttheRadarplug-in application. The plug-in pull-down menu varies depending on the installed applications.

NOTE. Radar requires a license to create waveforms.

Refer to Licensing

Radar Printable Help Document 5

(see page 65).

Orientation Signal Format selection

Signal Format selection

The Radar plug-in supports generation of two signal types (RF/IF and IQ). This allows you to create baseband waveforms (complex signals with I and Q waveforms) and RF/IF waveforms (real signal waveforms).

Baseband signals (IQ format): When the IQ signal format is selected, two baseband waveforms I and Q are genera

RF signals (RF/IF format): When the RF signal format is selected, one waveform ﬁle is generated for each pulse

ted for each pulse train if the setting is to c reate a single waveform in the compile settings.

train if the setting is to create a single waveform in the compile settings.

Compile button

Use the Compile button to compile the currently active pulse train setup and place the pulse trains into the Waveforms list of the host application.

Use the Compile settings button to edit the compilation settings.

OTE. When compiling, all pulse trains are compiled.

6 Radar Printable Help Document

Orientation Compile button

Compile settings

Item Descr

nel Assignment

Chan

Pulse Train The Pulse Trains listed are based on the trains created in the Pulse Train List.

iption

hannel assignment area changes based on these factors:

The c

■ Signal Format selection (RF/IF verses IQ).

■ Generator capabilities (IQ modulator to create IQ waveforms).

Radar Printable Help Document 7

Orientation Compile button

Item Description

RF channel assignment

Choose the channel to associate with the compiled RF waveform. The selected channel is also used to deﬁne the amplitude ranges.

I and Q channel assignment

Choose the channels to associate with the compiled I and Q waveforms. The selected channel is also used to deﬁne the amplitude ranges.

See the information about the “Use Internal IQ Modulator” selection.

IQ channel assignment If the generator has IQ modulator capabilities (digital up converter) and is enabled, you

are able to assign the complex IQ waveform to a channel.

Choose the channel to associate with the compiled IQ waveform. The selected channel is also used to deﬁne the amplitude ranges.

See the information about the “Use Internal IQ Modulator” selection.

8 Radar Printable Help Document

Orientation Compile button

Item Description

Correction Files Check the box to apply a correction ﬁle directly to the pulse train when compiling.

Use the browse

Onceavalidﬁle path is entered, the Correction Settings icon display the Frequency Response screen.

For RF signal

For IQ signal formats, you can apply a correction ﬁle to both I and Q components.

If the ins can apply a correction ﬁle to the complex IQ waveform.

folder icon

formats, you apply a single correction ﬁle to the pulse train.

trument has an internal IQ modulator, and it is selected to use during compile, you

to navigate to a saved correction ﬁle.

is enabled. Select to

Create each Pulse Train as

nce

seque

Use Internal IQ Modulator If checked, a complex IQ Waveform is created which can be used with the internal

Overwrite existing

eform(s)/sequence(s)

wav

mpile only

mpile and assign to

Co channel

Play after assign If checked, the pulse trains start to play out immediately after compiling.

Sampling Rate

Auto calculate

If checked, each pulse train will be compiled as a sequence in addition to the waveforms.

hecked, each pulse train is created as one single waveform, which may take more

If unc memory to compile, depending on the settings.

This check box is not shown if the instrument does not have the sequence option.

dulator. Sampling Rate and interpolation rates will be calculated based on the

IQ mo Baseband parameters.

This setting is not shown if the generator does not have an internal IQ modulator.

If checked, a pulse train with the same name (in the Pulse Train list) is overwritten with no

nings.

war

e compiled pulse trains are entered into the Waveforms and Sequences lists.

The compiled pulse trains are automatically assigned to the selected channel.

e pulse trains are compiled and listed in the waveform and sequence lists depending on

Th the state of the "Create each Pulse Train as sequence" setting.

This is the default method to set the sampling rate. The application creates a sampling rate based on the settings chosen.

Radar Printable Help Document 9

Orientation Compile button

Item Description

Manual

Compile Compiles the pulse trains.

xxx

Select to enter a speciﬁc sampling rate.

When compilin

g, all pulse trains in the Pulse Train list are compiled.

Correction ﬁle frequency response

If applying an RF correction ﬁle, the Frequency Response screen shows plot information and provides Advanced options to apply a Gaussian ﬁlter or remove Sin(x)/x distortions.

If applying an I/Q correction ﬁle (to a pair of I and Q waveforms), the Frequency Response screen shows

information and provides Advanced options to apply a skew.

plot

10 Radar Printable Help Document

Orientation Compile button

When appl I and Q. The Frequency Response screen shows plot information and provides Advanced Options to apply aGaussianﬁlter or remove Sin(x)/x distortions. WhenselectingIandQcorrectionﬁles, separate ﬁles for I and Q are shown in the Frequency Response window.

ying an I/Q correction ﬁle you can choose either a single IQ correction ﬁle or correction ﬁles for

Radar Printable Help Document 11

Orientation Reset Plug-in button

Reset Plug-in button

Returns all plug-in settings to their default values.

Help button

This button is located at the top right of the display. Click on it to open the plug-in Help ﬁle, which provides information about the plug-in application.

12 Radar Printable Help Document

Pulse Train Pulse Train tab

Pulse Train tab

The Pulse Train tab provides all the basic parameters for each pulse train. As you highlight pulse trains in the Pulse Train List, the Pulse Train tab changes to match the highlighted pulse train.

NOTE. When ad train is created with default settings. After the new pulse train is created, you can then change its associated parameters.

ding a pulse train (with the AddPulseTrainmenuoption

(see page 13)), the new pulse

Pulse Train list and menu

Initially, the Radar plug-in contains one default pulse train in the Pulse Train List. Right-clicking on the Pulse Train in the Pulse Train List opens a menu with the following options:

Radar Printable Help Document 13

Pulse Train Pulse Train list and menu

Add Pulse Train: Creates an additional pulse train. The new pulse train is placed at the bottom of the list of existing pulse trains. All features and parameters of the new pulse train are set to their default value

Rename: Allows you to rename the selected pulse train.

Remove: Deletes the selected Pulse Train. (This menu item is not selectable if the selected pulse

train is the only pulse train in the list.)

Open Pulse Train: Allows you to select and open an existing .csv ﬁle and adds the new pulse train to the list. The .cvs ﬁle must meet the speciﬁc format described in the Open Pulse Train ﬁle format

requirements (see page 14) topic.

The maximum number of pulse trains you can have in the table is 10. Each row in the list corresponds to one pulse train. Ea

Each pulse train has a basic set of adjustable parameters. When the Signal Format is set to RF/IF, they are Magnitude (Peak), Frequency, Phase Offset, and choice to create the carrier coherently or not. When the Signal Format is set to IQ, they are Amplitude, Baseband Offset, and Phase Offset.

Each Pulse Train has a corresponding Pulse Train Table that allows you to set up pulses and dead time.

ch Pulse Train can be compiled and assigned to a channel in Compile Settings.

Open Pulse Train ﬁle format requirements

The pulse train name will be autogenererated if you do not specify the name in the .csv ﬁle.

A sample .csv ﬁle (pt10. from www.tek.com/manuals. This same sample .csv ﬁle is also provided with the software and can be found by navigating to the Samples directory of the product you are using. For instance, the default installation path for the AWG70000 series sample directory would be C:\Program Files\Tektronix\AWG70000\Samples.

The value of header parameters not speciﬁed will be set to default on restore.

The following header parameters are supported:

PulseShape

RiseTime

FallTime

PulseWidth

RiseTimeType

FallTimeType

Droop

Overshoot

Ripple

csv) is attached to the PDF of this Help ﬁle, which can be downloaded

RippleFrequency

OffTime

14 Radar Printable Help Document

Pulse Train Pulse Train list and menu

A valid csv ﬁle must have the following format:

PULSE_TRAIN_NAME,<pulse_train_name>

PULSE_HEADER_BEGIN

PulseShape,RiseTime,FallTime,PulseWidth,RiseTimeType,FallTimeType,Droop,Overshoot,Ripple,RippleFrequency,OffTime

PULSE_HEADER_END

PULSE_ITEM

<pulse_Shape_1>,<rise_time_1>,<fall_Time_1>,<pulse_Width_1>,<rise_Time_Type1>,

<fall_Time_1>,<droop_1>,<overShoot_1>,<ripple_1>,<ripple_Freuency_1>,<off_Time_1>

<pulse_Shape2>,<<rise_time_2>,<fall_Time_2>,<pulse_Width_2>,<rise_Time_Type2>,

<fall_Time_2>,<droop_2>,<overShoot_2>,<ripple_2>,<ripple_Freuency_2>,<off_Time_2>

<pulse_Shape_3>,<rise_time_3>,<fall_Time_3>,<pulse_Width_3>,<rise_Time_Type3>,

Time_3>,<droop_3>,<overShoot_3>,<ripple_3>,<ripple_Freuency_3>,<off_Time_3>

<fall_

...............................................................................................................................................................

<pulse_Shape_n>,<rise_time_n>,<fall_Time_n>,<pulse_Width_n>,<rise_Time_Typen>,

<fall_Time_n>,<droop_n>,<overShoot_n>,<ripple_n>,<ripple_Freuency_n>,<off_Time_n>

SE_ITEMS_END

PUL

You do not need to specify a value for a particular parameter. For instance, the rise time (second

rameter for Trapezoidal shape line 1) is not speciﬁed in the following example. The value is blank

pa and is shown as a double comma (,,).

S_BEGIN

LSE_HEADER_BEGIN

PulseShape,RiseTime,FallTime

PULSE_HEADER_END

PULSE_ITEMS_BEGIN

RaisedCosine,120E-09,130E-09

Trapezoidal,,110E-09

Trapezoidal,140E-09,150E-09

Radar Printable Help Document 15

Pulse Train Pulse train table

PULSE_ITEMS_END

An error will be reported if any of the following occur:

If you attempt to open a pulse train when the total number of pulse trains exceeds the maximum supported

If the .csv ﬁle contains more pulse deﬁnitions than the one supported in t he conﬁguration

If you set values that are not supported by that particular parameter

If you enter a header parameter that is not allowed

If a pulse train with a given name already exists

Pulse train table

The Pulse Train table can have multiple Pulse Groups along with Dead Time. You can set the PRI, Start Time, and Repeat by double clicking in the cell related to that parameter in the table. Duration and On Time are read only. The Duration is calculated by Repeat * PRI. If the type is Dead Time, then only Duration is displayed.

Menu operations

With any Pulse Group selected, a right-mouse click in the table displays a menu of operations.

Item Description

Add

Insert

Select to add either Pulse Group, Dead Time, or Combined Pulse Group to the table.

Select to insert either Pulse Group, Dead Time, or Combined Pulse Group at the selected index.

16 Radar Printable Help Document

+ 51 hidden pages

Tektronix RADAR Primary User

Specifications and Main Features

Frequently Asked Questions

User Manual