KEYCOM RCS05 Users Manual
Document number
14418D27-01
76.5 GHz
RCS Imaging Evaluation System
(76.5GHz Imaging RADAR)
MODEL : RCS05
FCC ID : 2AON3-RCS05
Instruction Manual
Ver. 6.12
April 02, 2019
Keycom Corporation
Introduction
This manual describes the function outline of the 76.5 GHz RCS Imaging Evaluation System (76.5 GHz Imaging RADAR),
the name and description of each part, operating procedures, precautions on use, and so on.
Safety Notices
CAUTION
A CAUTION notice denotes a hazard. It calls attention to an operating procedure,
practice, or the like that, if not correctly performed or adhered to, could result in
damage to the product or loss of important data. Do not proceed beyond a CAUTION
notice until the indicated conditions are fully understood and met.
WARNING
A WARNING notice denotes a hazard. It calls attention to an operating procedure,
practice, or the like that, if not correctly performed or adhered to, could result in
personal injury or death. Do not proceed beyond a WARNING notice until the indicated
conditions are fully understood and met.
WARNING
There is a reflecting mirror rotating at high speed inside the device, and it is extremely
dangerous to use the device by opening the radome or the case.
Although the radome and the case are tightened so as not to be opened with TRX
Flat Head Screw , ＰＬＥＡＳＥ ＤＯ ＮＯＴ ＯＰＥＮ ＴＨＥＭ ＡＢＳＯＬＵＴＥＬＹ.
Please note that it will be out of warranty if opened.
1. System overview
In this system, reflection distribution from the object to be measured such as automobile can be displayed as an image,
and RCS * can be calculated from the measurement result. (RCS *: Radar Cross Section radar reflection cross section,
expressed in m 2 in real number, in dBsm in logarithm)
(1) Features of the system
(a) Millimeter wave pulse radar with a center frequency of 76.5 GHz, which is a specific low power device without
license.
(b) By using the parabolic mirror rotating at high speed for the reflector of the primary radiator, it is possible to obtain
a 3-dimensional wide range image in a short time.
(c) By specifying the horizontal and vertical rectangular range and distance range of the measured image, RCS
calculation is possible by selecting the object.
(d) Since all the CLK, IF, and RF signals are phase synchronized and the phase component of the signal is also detected
by the IQ Mixer, the data within the specified range is calculated by IQ phase synthesis of the total RCS and the peak
value Peak RCS can be calculated.
(2) Definition of coordinates
There are three types of coordinate system of the system, polar coordinates, orthogonal coordinates, and cell
coordinates. The definition of each coordinate system is explained below.
Polar coordinate
θ(Theta)、φ(Phi)、d
(d is the distance from the antenna to the target.)
－θ
0°
RADAR
Top view Side view
＋θ
RADAR
＋φ
0°
－φ
Cartesian coordinates
x, y, z
“ “
z
x
RADAR
Top view Side view
is the front direction of the radar
RADAR
y
z
1
Cell coordinates
Pθ, Pφ
Pθ=0,Pφ=40
Pθ=60,Pφ=40
Pθ=60,Pφ=0
Pθ=0,Pφ=0
The cell coordinates are the data cell number of the image screen. In the above figure, the range of horizontal 30 °
vertical 20 ° is measured in increments of 0.5 ° both in the horizontal and vertical directions, and is an example of the
cell coordinates when the number N of data in the horizontal direction is 61 and the number M of data in the vertical
direction is 41.
Correspondence between cell coordinates and polar coordinates
θ = Pθ* (horizontal measurement angle unit) + horizontal measurement start angle
φ = Pφ* (measurement unit in the vertical direction) + measurement start angle in the vertical direction
The measurement angle unit in the horizontal direction is fixed at 0.5 °, and the measurement angle unit in the vertical
direction may be 0.5 °, 1 °, 2 ° depending on the setting.
2
" side pushes it ON,
Connects to the measuring computer Connector for inserting the USB
for
ronization signal data of 4 cameras is
It is a resin cover that covers the transmission direction surface of
2. Explanation of each part
(1) Rear Panel
LED
Power switch
USB connector
The cross mark of the photograph is the center position of the mirror
No. Name Description
1 LED Lights up when the power to the device is turned on.
2 Power switch This switch turns on / off power. Pressing "┃
3 USB connector
4 Synchronization signal
5 DC 12 V power connector This is a 3 pin connector that connects DC 12 V AC adapter.
(2) Front Panel
Synchronization signal for camera
DC 12 V power connector
pushing "○" side turns it OFF.
cable.
0 V is output while image synch
camera
being acquired, and 3.3 V is output for the others.
Handle
No. Name Description
1 Handle Used for moving the movable hand tool.
2 Radome surface
the radome surface radio wave.
Radome surface
3
3. Measurement computer requirements
The requirements of the measuring computer connected to this system are as follows.
No. Item Requirement Remarks
1 CPU Intel Core 3 or higher
2 Memory 4G Bytes or more
3 HDD free space 32G Bytes or more
4 Display resolution 1280 x 1024 dots or more
5 I/O USB 2.0 1 port or more
6 OS Windows 7, windows 10 recommended
4
4. System startup and shutdown
(1) Start up the system
(a) Connect the instrument main unit and the measuring computer with a USB cable.
(b) Turn on the power switch of the main unit. (Push the "┃" side of the locker switch in)
(c) Turn on the measuring computer.
(d) When the OS of the measurement computer starts, start the measurement program (76 GHz RCSimaging.exe).
(CAUTION: Start up the measurement program after about 10 seconds elapsed after turning on the power of the unit.)
(2) System termination
(a) Exit the measurement program.
(b) Shut down the measuring computer and turn off the power.
(c) Turn off the main unit's power switch. (Push in the "○" side of the locker switch)
5. Preparation for measurement
(1) Installation of the main unit
Install the unit in a horizontal position.
Point the radome side (resin side) of the main unit toward the object to be measured.
(2) System initialization
When you start the measurement program, initialization processing of the main unit will be performed automatically.
The initialization process takes about 10 to 20 seconds, during which the wording "On Standby" appears in the message
display area. Also, since the key operation of the measurement program does not work, please wait until the end.
When initialization processing is completed, the word "Standby OK" is displayed in the message display area.
(3) Setting of automatic saving of csv file (Please refer to Appendix 1 for explanation of csv file.)
If you select "Auto save" from the "Settings" menu on the main screen, the following screen will be displayed.
①
②
③
① Check to save the data to a file while measuring.
② Specify the folder to save measurement data.
③ Specify a fixed character string to be added to the beginning of the file. The date and time (YYYYMMDDhhmmdd)
automatically appends this fixed character string to the file name, and the extension is csv.
5
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