星载InSAR均匀相位构形的空间基线稳定性

Stability of Baselines of Spaceborne InSAR in Even Phase Configurations

星载InSAR(干涉式合成孔径雷达)在对地观测任务中具有广泛的应用,其空间基线随卫星编队平台的运动而变化。本文基于卫星编队的构形原理,定义了星载InSAR均匀相位构形。根据干涉测量原理定义了相关基线及其稳定度,研究了不同均匀相位构形下星载InSAR的基线稳定性。

Spacebome InSAR （Interferometri Synthetic Aperture Radar）, whose baselines may undergo complicated variations while the satellite formation flies in the space, is widely used in earth observation. Based on the principle of satellite formation, the even phase configuration for the spacebome InSAR was defined. Then baselines and their stability were supplied from the principle of InSAR measurement, and the stability of spaceborne InSAR in different even phase configurations was addressed.