Wideband Radar Detection for Maneuvering Target

A new method for detection of maneuvering target in wideband signal and for estimation of its moving parameters is proposed. Firstly the adjacent correlation is employed to decrease the order of the echo signal. Then the signal is transformed into range frequency domain and the general two-order keystone transform is used to eliminate range curve. Thirdly a range frequency cell is selected to estimate the azimuth frequency modulation rate via the time-chirp rate transform. Fourthly a phase compensation function is constructed for phase correction. Finally the general second-order keystone transform is used again and the range IFFT and azimuth FFT are performed so that the target detection is feasible. The moving parameters can be obtained by the estimates. In the end, simulated and raw data results confirm the effectiveness of the proposed method.