摘要
本文通过分析机载InSAR干涉相位特点，提出平行基线可以近似代替主辅影像斜距差，因此利用平行基线不仅可以解算绝对相位，而且可以直接完成相位解缠而不会引入额外误差，为机载InSAR相位解缠提供了新的解决方案，有效避免了已有机载InSAR相位解缠算法的缺陷。为了验证该方案的可行性，本文利用机载真实数据进行了相位解缠试验，结果表明，利用平行基线直接相位解缠是完全可行的。
Based on the analysis of interferometry phase of airborne InSAR system, the parallel baseline is considered to be an acceptable substitute for the slant range difference. Since the parallel baseline can be used to solve absolute phase and avoid extra error in phase unwrapping, a novel solution to airborne InSAR phase unwrapping is presented. Real airborne InSAR data is employed to testify the feasibility of the solution, and the result indicates that it is feasible to use parallel baseline in phase un- wrapping directly.
出处
《测绘科学与工程》
2015年第5期11-14,共4页
Geomatics Science and Engineering
