Scatterers often exhibit aspect or frequency dependence which affects the micro-Doppler shift in scattering response. For cone-cylinder targets, sliding-type scatterers which slide on the edge discontinuity with the change of the incident angle are the most dominant nonideal scattering models. A method is proposed to discriminate among the scatterers on the cone-cylinder target based on the deviation degree of micro-Doppler from sinusoid. By extracting the amplitude and initial phase, the micro-Doppler is estimated as sinusoid. Then the deviation degree is evaluated by the error between the extracted sinusoidal micro-Doppler and the actual micro-Doppler curve. Threshold for the classification is determined with the simulation data. After classification, the micro-Doppler features of sliding-type scatterers are exploited to estimate the target dimensions. The influence of parameters errors and noise on estimation of target dimensions is also illustrated with the simulation data.

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aspect parameters edge frequency dependence target dimensions sinusoidal microdoppler noise deviation degree of microdoppler from sinusoid microdoppler shift in scattering response nonideal scattering models microdoppler features of slidingtype scatterers

Bo Peng, Yongshun Ling,Yuling Liu, Xizhang Wei,.Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis. 28 (1),10-18.

Bo Peng, et al."Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis" 28

Bo Peng, Yongshun Ling,Yuling Liu, Xizhang Wei,"Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis"