Silicon Radar SiRad Simple Скачать руководство пользователя страница 25 | Manualshive

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Silicon Radar SiRad Simple Скачать руководство пользователя страница 25

User Guide (Version 2.2) of the
SiRad Simple® Evaluation Kit

- 25 -

Targets:

The first ceiling echo is around 200 cm, which should be quite high versus the neighboring noise
floor. Using a lens will make this target peak thinner and higher and more easily detectable by the
CFAR operator. The next targets are around 260 cm, 410 cm, and 460 cm.
Due to the adaptive nature of the CFAR operator it might happen that if two targets are too near to
each other or are very different in magnitude, one of them is rejected (hidden) by the CFAR
operator, such a target may be hidden around 220 cm. Changing the target recognition settings
might help in this situation.

DC component:

There is some DC component on the left side. If this DC offset is high, it might trigger a false target
detection of the CFAR operator.

Clutter:

Around 290 cm to 330 cm there might be some clutter which is rejected by the CFAR operator.

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Содержание SiRad Simple

Страница 1: ...se 24 Apr 17 Silicon Radar GmbH Version Document number Filename Page 2 2 UserGuide_SiRad_Simple 1 of 34 Silicon Radar GmbH Im Technologiepark 1 15236 Frankfurt Oder Germany fon 49 335 557 17 60 fax 4...

Страница 2: ...2 2 3 Connecting to the Board via WiFi 11 2 2 4 Starting the Graphical User Interface Silicon Radar WebGUI 11 3 Getting Started with the Silicon Radar WebGUI 12 3 1 Understanding the User Interface 1...

Страница 3: ...s the MTI Mode 27 4 2 14 There are too many targets The CFAR operator does not work 28 4 2 15 How is the distance information calculated 28 4 2 16 The update rate of the sensor is very low How can I i...

Страница 4: ...ntrol Panel 14 Figure 14 System Configuration tab of the Control Panel 14 Figure 15 RF Parameters tab of the Control Panel 16 Figure 16 BB Processing tab of the Control Panel 17 Figure 17 Target Recog...

Страница 5: ...Figure 1 right Figure 1 SiRad Simple Evaluation Kit left and graphical user interface right The SiRad Simple Evaluation Kit demonstrates the performance and parameters of the 122 GHz radar transceive...

Страница 6: ...the I and Q output signals of the transceiver Analog to Digital converter to digitize the I and Q receiver signals microcontroller to do PLL setup ramp configuration A D conversion signal processing...

Страница 7: ...R also see Section 3 2 3 1 Pin Description 5V 5V GD GND MT microcontroller TX MR microcontroller RX TR external trigger line WT WiFi TX WR WiFi RX 3 3V tolerant only Figure 2 External header J1 pinout...

Страница 8: ...mper J2 for the WiFi module switched on and connect two jumpers between MT WR and MR WT Apply 5V to the 5V pin and GND to the any GD pin there are four of the external header J1 Figure 4 WiFi pinout o...

Страница 9: ...ined in Section 2 1 2 UART and 2 1 3 WiFi Please configure the sensor board for either the UART mode for the USB connection or the WiFi mode before proceeding to one of the next sections The Evaluatio...

Страница 10: ...ion of the software you can now optionally connect to this serial port using a terminal program such as PuTTY6 or Realterm7 with the following UART settings 230400 baud 8 bits 1 stop bit no flow contr...

Страница 11: ...n Windows the IP address that was assigned by the sensor s WiFi module to your PC can be checked in the network manager Proceed to Section 2 2 4 for running the graphical user interface 2 2 4 Starting...

Страница 12: ...the screen with the active view in orange scene canvas itself where the sensor data is displayed target list with the status fields on the right side of the screen draggable The control buttons on th...

Страница 13: ...lhost 9090 is for communication via the USB port see Figure 11 left If you are using WiFi type in the IP address and the port 9090 of the sensor s WiFi module like in Figure 11 right for example 192 1...

Страница 14: ...e 12 right those will be automatically restored next time you open the browser 3 2 3 System Settings System Configuration Tab The System Configuration tab shown in Figure 14 is used to control the kin...

Страница 15: ...s DC cancellation activates the DC offset compensation of the ADC data Range data activates the transmission of the distance data frames which contain the distance spectrum data in dB for each distanc...

Страница 16: ...4 Radar Frontend Settings RF Parameters Tab The RF Parameters tab in Figure 15 is used to control the radar frontend of the sensor For each radar measurement the frontend is driven with one or more fr...

Страница 17: ...ramps The bandwidth should not exceed the maximum frequency fmax of the frontend minus the minimum frequency fmin of the frontend minus 200 MHz Base frequency set the start frequency of the frequency...

Страница 18: ...R Hence higher values give slower measurements but better SNR However too many ramps may smear out the signal due to the phase noise of the system Downsampling determines how many samples are averaged...

Страница 19: ...tion Description 0 3 Reserved 4 bins number of the distance bin which receives the data 5 mm data is displayed in mm depending on the accuracy 6 cm data is displayed in cm depending on the accuracy Fi...

Страница 20: ...Protocol Description for further information about the sensor s communication protocol 3 3 Using the Main Menu The main menu is shown in Figure 21 Here you can select how the data should be displayed...

Страница 21: ...ate from the TSLM value time since last measurement The Target list shown in Figure 24 bottom part is ordered by distance With every new measurement having the CFAR operator enabled the Target list is...

Страница 22: ...e Options menu you can choose the coloring of the data between Magnitude Range target number Phase angles the phase angles are only colorized if the magnitude is larger than 120 dB and when the Phase...

Страница 23: ...of the view relative to the specified axis The camera view can be changed using the mouse within the scene area A left click drag pans the camera position A right click drag changes the camera view a...

Страница 24: ...uring processing but do not last longer than 3 times checking them The temporary error flags are removed automatically Persistent errors are errors that last longer than 3 times checking them and can...

Страница 25: ...daptive nature of the CFAR operator it might happen that if two targets are too near to each other or are very different in magnitude one of them is rejected hidden by the CFAR operator such a target...

Страница 26: ...ion 2 2 2 4 2 WebGUI 4 2 1 I cannot store presets in the Preset tab Please make sure you are not working in the private mode of your browser and you have enabled cookies since the presets are stored a...

Страница 27: ...tab does not show the min max frequencies properly You can try a manual min max frequency scan by clicking the fscan button three times 4 2 9 How do I choose a base frequency The base frequency shoul...

Страница 28: ...ability to separate two targets in range The resolution is only dependent on the selected bandwidth With 1 GHz bandwidth the resolution is 15 cm 6 GHz bandwidth equals 2 5 cm resolution In practice ta...

Страница 29: ...l the sensor with your own software or third party software like MATLAB 4 4 2 Can I activate raw data only or FFT data only output Yes Please read the Protocol Description about how to set up the sens...

Страница 30: ...ll Package into the stm32flash folder Edit the batch file stm32flash bat and replace the COM port with the COM port of your USB to UART cable and the firmware name with the desired firmware marked her...

Страница 31: ...Edit the batch file esptool bat and replace the COM port with the COM port of your USB to UART cable and the firmware name with the desired firmware marked here esptool bz 1M cp COMx cf websocket_mini...

Страница 32: ...User Guide Version 2 2 of the SiRad Simple Evaluation Kit 32 6 Mechanical Drawing Figure 37 Mechanical drawing of the SiRad Simple Evaluation Kit...

Страница 33: ...the critical uses policy set forth below CRITICAL USE EXCLUSION POLICY BUYER AGREES NOT TO USE SILICON RADAR GMBH S PRODUCTS FOR ANY APPLICATION OR IN ANY COMPONENTS USED IN LIFE SUPPORT DEVICES OR T...

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