InSAR technology

with its advantages of large-scale

high-precision

and all-weather monitoring capabilities

has been widely applied in building deformation monitoring. By acquiring high-resolution radar images and utilizing time-series analysis to extract deformation information

InSAR can accurately reflect building settlement

tilting

and structural deformations characteristics. Monitoring accuracy is affected by factors such as atmospheric delay

coherence loss

and geometric distortions of images

so it is necessary to combine ground-based measurement data through multi-source data fusion

which can effectively enhance measurement precision. Comparative analysis with monitoring methods such as GNSS and inclinometers validates the reliability of InSAR monitoring data

optimizes deformation field inversion algorithms

and improves monitoring accuracy of building deformation. The research results indicate that InSAR-based building deformation monitoring systems offer significant advantages in accuracy and stability

providing reliable technical support for structural health monitoring and risk assessment.