Is there any way to get or receive the raw data that the radar gives? i was wondering also if it uses ply format or which?
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Is there any way to get or receive the raw data that the radar gives? i was wondering also if it uses ply format or which?
Hi,
The DCA1000 board will give the ADC data coming out of the radar device. I'm not aware of a ply format, but the format of the data should be documented here.
Best,
Nate
Thanks for the reply, I can see in the documentation that the IWR6843AOP Rev A-F only works with DCA1000 if I have the ICBOOST, but the xWR6843AOP Rev G doesn't require the ICBOOST. How do I know which rev I have?
I can also see that in this file https://www.ti.com/lit/an/swra581b/swra581b.pdf?ts=1670318082212 the capture demo to get raw data does not require the DCA1000 board or is that incorrect?
The revision should be printed on the board. I see the Rev G on the board in front of me in the middle of the EVM
As far as I understand, the method for raw data capture in that link that does not use the DCA will only let you capture one frame at a time. If that's sufficient then go for it.
Thanks for the reply Nathan, I can see as well that my board is also Rev G. I'm a beginner so I'm sorry for the silly question but when you say it captures only one frame at a time, do you mean it only captures one second or just one instance of what the radar is capturing? I am confused as I just ran the lab and captured some data with 'Record time max (s)' as 10, and I am not sure what this means.
I can also see in the mmwave_sdk_user_guide that there are multiple mentions of a data capturing method but I can find no other information about what it is or how it works. There is a pdf called mmwave Radar Device ADC Raw Capture Data Capture that mentions using a capture demo and CCS to get raw data, can you tell me if this is what requires the DCA1000 module or something else?
Hello,
So there is a difference between one frame and one second. You can compare radar to a video camera, for example with a video camera it will compile many pictures back to back and the "smoothness" of the footage will depend on the amount of frames per second (FPS). Radar works in a similar manner where one frame shows what it sees in that exact instance of time. Capturing frames back to back you can actively see detected points adjust as the environment changes.
In both the CCS example as well as the mmWaveStudio example, a DCA1000 is required for raw data capture. This is because the raw data coming in from the radar sensor needs a very high transfer speed. USB is not fast enough for this and so we use Ethernet to transfer data from DCA1000 to the PC.
Best Regards,
Pedrhom Nafisi