Estimation method of interferometric phase of interferometric synthetic aperture radar (InSAR) based on correlation-weighted united subspace projection
A technology of subspace projection and interferometric phase, which is applied in the field of radar detection and can solve the problem that the registration accuracy of SAR images cannot accurately estimate the interferometric phase.
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[0065] The InSAR interferometric phase estimation method based on correlation weighted joint subspace projection provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0066] Such as figure 1 As shown, the InSAR interferometric phase estimation method based on correlation weighted joint subspace projection provided by the present invention includes the following steps carried out in order:
[0067] 1) Use the traditional correlation method to roughly register the sub-image with the main image as a reference to obtain a coarsely-registered image;
[0068] In the main and auxiliary SAR images obtained from the actual measurement, the main image is used as a reference, and the traditional correlation method is used to perform coarse image registration processing on the auxiliary image to obtain a rough registration image. In the coarse registration processing of the image, no It is required that...
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