摘要
InSAR系统根据两幅相干复影像的相位差进行高程测量或动目标检测，要求这两幅SAR复数影像之间必须相干。相干性是InSAR系统得以实施的前提，是InSAR系统中最关键的因素之一。本文根据InSAR信号的获取情况，对InSAR相干性的来源进行了分析。
The main application of InSAR method is to generate terrain elevation data using the phase difference of two coherence images acquired from different positions. The coherence is the key factor of interferometry for an InSAR system. Based on the InSAR signal acquistion process the coherence source of InSAR is analyzed in this paper.
出处
《测绘科学与工程》
2008年第3期1-3,共3页
Geomatics Science and Engineering
关键词
干涉合成孔径雷达
相干性
interferometric synthetic aperture radar （InSAR）
coherence
