Cross-scattering model-based polarization radar remote sensing image urban target decomposition method
A technology of polarization target decomposition and scattering model, which is applied in the field of urban target decomposition of polarization radar remote sensing images, can solve the problems of reducing volume scattering estimation, underestimating volume scattering in forest areas, and inaccurate scattering mechanism in forest areas, etc. Sex, results, reasonable effects
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[0065] The present invention will be further described in detail below in conjunction with the drawings.
[0066] See figure 1 , The polarization SAR urban target decomposition method based on the cross-scatter model of the present invention, the specific implementation steps are as follows:
[0067] Step 1. The radar polarization scattering matrix of each pixel in the PolSAR single-look complex data can be expressed as Where H and V represent horizontal polarization and vertical polarization, respectively. S PQ (P,Q=H,V) is the emission in Q polarization mode, and the target backscattering coefficient of the scattering matrix when receiving in P polarization mode. In the case of backscattering that satisfies the reciprocity theorem, there is S HV =S VH .
[0068] Then the Pauli scattering vector can be expressed as
[0069] Step 2: Scatter the vector k by Pauli 3P The polarization coherence matrix T of the pixel is calculated, and the calculation formula is:
[0070]
[0071] Amo...
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