As explained in Mmwave Radar Device ADC Raw Data Capture (swra581b.pdf), After saving data in .dat format using mmwave demo visualizer, you can use the code mentioned in the file to analyze
"Once the data is saved, it can be viewed in MATLAB using the capture_demo.m file located at C: \ mmwave_sdk_ <version_number> \ packages \ ti \ demo \ xwr14xx \ capture \ gui for the xWR1xx, and located at C: \ ti \ mmwave_sdk_01_00_00_05 \ packages \ ti \ demo \ xwr16xx \ capture \ gui for the xWR16xx. This file plots the raw ADC data and the 1D FFT of the ADC data. This code can be modified to complete additional post processing on the data. ""
But I did not find the capture \ gui folder in the corresponding installation path, nor did I find the corresponding matlab code. My mmwave demo visualizer version is 2.1.0 and mmwave sdk version is 02-00-00-04. I hope to provide a solution and provide the corresponding version of matlab code