background image

 

19

 

2.Format of raw data file 
 
The raw data file is a text file in CSV format and can be read by spreadsheet software such as Excel. 
The configuration in the file is as follows, and the data for one scan of the image data is recorded. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Since the first header part to the two-dimensional display part have the same format as the measurement data file, the 
explanation is omitted. 
Each item of the raw data section is explained below. 
 
(1)header of raw data 

Pulse Width 

←It is a value representing pulse width, but ignore it because it is not 

used. 

Distance Offset 

90 

←"0 m point correction value" on the parameter setting screen 

Up(1)/Down(0) 

←Flag indicating the tilt direction   

Scanning in the upward:1 
Scanning in the downward: 0 

 
(2)

Data section of raw data

 

Theta Position 

Cell coordinate P

θ

 

Phi Position 

Cell coordinate P

φ

 

Sample Number 

Sampling number 

I value of I / Q detection

 (

digital value obtained from A / D converter

)

 

Q value of I / Q detection

 (

digital value obtained from A / D converter

)

 

Amp 

Amplitude value (digital value) of voltage obtained from I / Q value 

 

raw data file 

Header section 

header of raw data 

Same as the format of multiple file 

Data section of raw data 

Measurement data section 

Rectangular range data 
section 

Two-dimensional display 
section 

Содержание RCS05

Страница 1: ...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...

Страница 2: ...ION 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...

Страница 3: ...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...

Страница 4: ...ntal direction is 61 and the number M of data in the vertical direction is 41 Correspondence between cell coordinates and polar coordinates P horizontal measurement angle unit horizontal measurement s...

Страница 5: ...the USB cable 4 Synchronization signal for camera 0 V is output while image synchronization signal data of 4 cameras is being acquired and 3 3 V is output for the others 5 DC 12 V power connector This...

Страница 6: ...uter 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...

Страница 7: ...nit 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 proces...

Страница 8: ...signals outside the distance range are not displayed and are not used for calculation It can be set between 3 m and 55 m Recalculate Click the Recalculate button when changing the distance range 5 Ima...

Страница 9: ...r less is 2 5 Hold horizontally Fix for more than 40 m In the case of S M L the range of the tilt angle set while the mirror turns 11 is scanned and measurement is completed S 2 M 1 and L 0 5 for the...

Страница 10: ...ll be displayed The items that can be entered on the above screen are parameters related to the operation of the system so there is no need to change it If the system is operating normally please do n...

Страница 11: ...d in the image display area the following screen will be displayed if you select Scale graph scale from the Settings menu on the main screen For the graph displayed on the main screen it is possible t...

Страница 12: ...a from the File menu on the main screen The measured data is saved in CSV format In this case only one image data is saved b Save multiple measured data Multiple File Select Save as Multiple File from...

Страница 13: ...imaging data Note Even if it is a point target like a CR its Tx pulse width is 5 ns and there is a received signal with a width of more than 75cm in the distance direction Please click the Recalculat...

Страница 14: ...arget measurement environment time are different In the same way as 1 below Estimate the distance between the radar and the unknown target set the measurement range in the distance direction Distance...

Страница 15: ...akage is visible to 0 m Drag the mouse in the image display area and place the target within the rectangular area Finally clicking the Calculate RCS button in the Target frame displays the calculated...

Страница 16: ...and then input the reference value acquisition button without changing the distance range and rectangular range After clicking to reflect the REF read the CSV file of another target specify the distan...

Страница 17: ...by actual radar can be obtained Usage notes Since the radome on the front of the equipment is a 0 1 mm Teflon sheet please handle it carefully so as not to damage it Especially when packing and transp...

Страница 18: ...rt Signal strength of specified part Record 2D data Get on screen refresh time 3D data You need the HDD You need ten times the time in 2D data External output Clock output for camera synchronization f...

Страница 19: ...30 mm Comment Frequency GHz 76 5 Transmission frequency Range Distance range Min m 5 Max m 10 Number of Data Points Theta 61 number of data points in the horizontal direction N Phi 11 number of data p...

Страница 20: ...rter AMP Amplitude value digital value of voltage obtained from I Q value POWER Received power value dBm obtained from POWER I Q value Rectangular range data section Rectangle Rectangular area selecte...

Страница 21: ...it is not used Distance Offset 90 0 m point correction value on the parameter setting screen Up 1 Down 0 0 Flag indicating the tilt direction Scanning in the upward Scanning in the downward 0 Data se...

Страница 22: ...the measurement range in the tilt motion the angle from the horizontal position is expressed by the encoder step number One encoder revolution 360 corresponds to 8192 steps 9 Measurement bottom end p...

Страница 23: ...h is automatically specified by your personal computer s OS according to user names If you log in to the computer with the same user name as the one named when you installed the software it reads the...

Отзывы: