• ELECTRONICS TECHNOLOGY •

### Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis

Yuling Liu1,*, Xizhang Wei1, Bo Peng1, and Yongshun Ling2

1. 1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;
2. Electronic Engineering Institute of PLA, Hefei 230000, China
• Online:2017-02-24 Published:2010-01-03

Abstract:

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.