• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 241 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DCA1000EVM: Time delays between samples, FMCW chirps and frames

navid Amani
Prodigy 60 points
Part Number: DCA1000EVM
Other Parts Discussed in Thread: AWR6843ISK, , MMWAVEICBOOST

Hi there,

Using AWR6843ISK + mmWaveICBOOST + DCA1000EVM

I’m using mmWave Studio to collect raw data and save it to .bin files. I had two questions:
1. Does mmWave Studio process the raw data in any way when saving it as a .bin file? I don’t mean the post-processing that is done after saving the .bin file, but whether the raw data itself is actually raw or processed somehow.
2. I wanted to understand what kinds of delays there are between samples, chirps and frames. So far I know that there is an interchirp delay and an interframe delay. Are there any other delays that are there that need to be taken into account?

BR,

Navid

  • 0
    TI__Expert 4448 points

    Hi Navid,

    1. Please refer to the DCA1000 mmWave Studio User Guide (ti.com), specifically the heading "Interpreting Data" toward the bottom. You can see that there is no processing done prior to the collection of the data, it is only the ADC sample values. This section also shows how exactly the .bin file is formatted. 

    2. Please refer to <MMWAVE_SDK3_INSTALL_DIRECTORY>\docs\mmwave_sdk_user_guide.pdf section 3.4. There is a labeled image of the radar chirp, and you can see how you can modify those timings with a .CFG file. I will also direct you to the mmWave Sensing Estimator, a tool which allows you to play with values for these delays with some error checking feedback.

    I hope this helps!

    Regards,
    Luke