A new data extrapolation algorithm with application in guidance and target recognition

A new data extrapolation algorithm is presented for guidance and target recognition application. The algorithm firstly uses DFT or FFT computation of L points data of response over band (f_o,f_o+ΔF) to obtain the rough outline of target range profile. Then a CFAR detector is used to obtain the structure window function X_w(e^jω) and its IFT series X_w(l) and several filtering functions {H_j (z)} are constructed. Finally, the extrapolation process by using the filtered series {y_j(l)} based on X_w(e^jω) restriction is established. The algorithm has the advantage of robustness under clutter background