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.

  • Resolved

Vital signs Lab! Slow time / Fast time sampling !

Expert 1085 points

Replies: 2

Views: 75

Hi all,

I am collecting data from AWR1642 using DCA1000 card to get raw data, and trying to use the configuration as in vital signs lab. 

I am recording 200 data points per chirp, 2 chirps per frame and using only one chirp for further processing. my recorded data shape is : (n_samples,n_data_points,n_Rx) which is (n_frames,200,4).

my question is: when applying the FFT to data to get the range bin for each chirp, throught which axe I should do it ! which one is the slow time axis and fast time axis ! can anyone  explain me in details !

thanks,

  • Hi,

    Fast Axis should be to perform an FFT on the 200 chirp data points. Slow axis should be to perform FFT accross the n frames

    thank you
    Cesar
  • In reply to Cesar:

    Hi,

    thanks Cesar, I got the point now.

    Ahmed

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.