DS Adaptive Selection Method in Insar Time Series Analysis Based on Land Type
A timing analysis and self-adaptive technology, applied in the direction of radio wave reflection/re-radiation, instruments, measuring devices, etc., can solve the problems affecting the accuracy and reliability of InSAR timing calculation results, without considering the natural properties or utilization status of DS, increasing Problems such as time cost and computational burden, to improve the selection quality, avoid the time spent, and narrow the search scope
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[0052] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0053] The present invention provides a new method for adaptive selection of distributed scatterers based on land cover / land use type (hereinafter referred to as land type), using land cover type map or land use type map (land type map) as the distribution of deformation monitoring areas According to the constraint conditions of DS selection, according to different land types, the selection threshold of DS under different land types is automatically calculated, and the adaptive selection of DS is realized.
[0054] figure 1 Shown is the flow process of the DS adaptive selection method based on the land type provided by the present invention, which specifically includes the following steps:
[0055] 1) Land type identification of SAR image pixel in radar coordinate system
[0056] Convert the land type map in the geographic coordinate system ...
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