Tool/software: TI C/C++ Compiler
Hi,
I am now use TI's new released "short-range radar reference design". In the C code, it use target's SNR (output of CFAR detection) to compute the var of noise, which is further used in the tracking process. It says the computation is according to CRLB, and the equations are as below.
/* CRLB for a frequency estimate */
fVar = (float)invSNRlin * (12.0f/((2.0f*PI_)*(2.0f*PI_))) * recipsp((n_samples*n_samples - 1));
/* Convert to a parameter variance using the scalefactor. */
RVar = fVar*scaleFac*scaleFac;
However, I don't understand it very well. Can you help me to explain it in detail? Or is there any references can be studied?