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Weak Scattering Mechanism Extraction Method Based on Target Null Theory

For current polarimetric system, the antenna usually transmits and receives electromagnetic waves with H and V polarizations which benefits the analysis and recognition of distributed targets greatly. However, for manmade target detection, the weak scattering mechanisms which characterize the structure of the target cannot be extracted with the fixed polarization. Aiming at this problem, the method proposed in this paper can be applied to suppress the strong scattering components based on target null theory. In the numerical simulation, the weak scattering mechanisms can be extracted correctly with the analysis of Cameron decomposition.