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Micro-motion characteristics of multi-feature targets on the double pulse coherent system
Si Chen1, Haiyang Zhang1, Lin Wang1
1School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China.
Abstract:
In this paper, we study the micro-motion characteristics of multi-feature targets based on a double pulse coherent system under atmospheric conditions. The theoretical model for echo signal and micro-motion characteristics of a 3D target in double pulse coherent system is deduced. We discuss the influence of micro-motion characteristics, the relative size of light spot and target, target shapes, and incident direction on frequency shift. LRCS (Lidar cross-section), echo waveform, intensity and radiation energy distribution under different conditions are obtained additionally. Simulation results conclude that these parameters are of advantage to the inversion of target shape properties and motion types.
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