Phase Analysis of Vertical Deformation of Targets with Multiple Incident Angles.

This paper mainly analyzes the change of InSAR phase with deformation and displacement by using multifunctional microwave indoor measurement. The experimental target adopts the high-voltage line tower component with strong scattering - metal tripod, which causes "deformation" by padding the bottom of the tripod by 5mm. According to the experimental principle of equal height interference fringes of electromagnetic waves, the measured data before and after deformation of the metal tripod are processed to obtain the phase data at different incident angles, The consistency between the InSAR phase change after phase unwrapping and the actual vertical deformation of the tripod is verified, which provides a basis for the accurate evaluation of InSAR crustal deformation monitoring, and has a good reference for the influence of different working parameters, especially the incident angle on InSAR results.