rustemiskuzhin / sfnd-radar-target-generation-and-detection Goto Github PK

hello! I was wondering about the transmit signal. In the original code, it provide as:

Tx(i) = cos(2*pi*(fc*t(i) + slope*t(i)^2/2));

but from the chirps graph, I think it makes more sense as this:
delt_f1 = mod(alpha*t(i),Bsweep); Tx(i) = cos(2*pi*(fc + delt_f1)*t(i));

about the mix signal:
Mix(i) = Tx(i) * Rx(i)
in the cousre it gived as:
Tx.*Rx = cos(2*pi(2*alpha*R/c + 2*fc*v/c)*t);

so after range FFT it shoude get the result:
2*alpha*R/c + 2*fc*v/c

do you have a better idea?