Fig. 2

Portions of the CAF fed for processing to the NN with \(\Delta _m=18\) and \(\Delta _n=5\) defining the size of the \(\{m,n\}\)-th sub-image. The resulting sub-image \({\textbf {Z}}_i^{(m,n)}\) is shown on the reduced delay/Doppler grid in the case of a absence and b presence of a GNSS spoofed signal with \(C/N_0 =45\) dB-Hz