4.4.1.1 ADC Data Read and Calibration

After each data collection, a binary data file corresponding to each of the four cascaded devices is saved as well as the corresponding chirp configuration file. These two files are the inputs to the ADC data read and calibration module. The binary data file is read/parsed according to the chirp parameters based on the data format, samples per chirp, chirps per frame, number of TX/RX channels. Then the data is reformatted into a 4D matrix, with the dimension of samples per chirp, chirps per frame, number of RX channels, and number of TX channels. Each of the TX/RX channel is calibrated according the pre-calculated calibration matrix that can be obtained using the procedures as described in Section 3. (reference)