Abstract:

Complex radar target echo can be seen as the synthesis of multi echo scattering centers. The state space model (SSM) model of radar echo is established, and the parameters of one dimensional scattering centers are estimated by super resolution. Then a method of detecting the number of scatterers is proposed which can tumble in a analysis of the state space. The number of scatterers can be obtained while the parameters are being estimated. The proposed algorithm is verified by simulation experiments using a classical radar echo model. The simulation results show that the method can effectively extract one dimensional scattering center parameters and estimate the number of scatterer, which has good noise immunity.