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Dear engineer
I am using dca1000evm and iwr1443 boost to collect ADC data, hoping to get the distance, speed and angle information of the target,now I have a few questions about mmwave studio parameter setting. I wish the engineer can help me to answer the questions. Thank you very much.
1. Phenomenon: when I use two TX to collect data, I set the number of chirps in each antenna to 64 (that is to say, there are 128 chirps in a frame), and the idle time is 100 microseconds. At this time, the periodicity is displayed as 40 ms;
When I use three TX to collect data, I set the number of chirps in each antenna to 64 (that is, one frame contains 192 chirps), and the idle time to 7 microseconds. I think the periodicity of the frame should change accordingly, but at this time, the periodicity is still displayed as 40ms, the same as that of two TX;
Question: why does the number of chirps in the frame increase, the idle time is shortened to 7 microseconds, and the frame cycle of setting page display does not change accordingly?
2. According to question 1, when setting the frame parameter in mmwave studio, can I manually set the periodicity at will? For example, set it to 10ms
3. Can I make 256 ADC samples smaller? For example, if it is changed to 100, the amount of echo data will be small. Will it lead to the decrease of accuracy? If you change the number of sampling points, do you need to modify the corresponding other parameters? For example, sample rate (ksps) was changed from 10000 to smaller.
Hello
Your questions seem to be a hybrid of mmWave RF sensing parameter questions and mmWave Device/tool related.
We can help you with device and tool related questions.
For questions pertaining to how chirps affect the sensing capabilities of mmWave sensins please refer to mmWave technology basics.
We have few things that could help you get started :
Introduction to mmWave sensing: FMCW radars
For making a chrip that works well on TI devices please use the following tool
mmWave Sensing Estimator tool under:
We will get back to you with device/tool level answers.
Thank you,
Vaibhva
