极化SAR干涉测量将极化测量技术和干涉测量技术巧妙地结合，能够提高干涉测量精度，尤其是在植被覆盖的情况下，不仅能够测量地表地形，而且使得估计植被高度成为可能。因此，近几年来国际上对极化SAR干涉测量技术的研究越来越重视，极化SAR干涉测量已成为SAR应用技术发展的重要方向。通过模拟技术深入研究极化SAR干涉测量理论和方法，并提出了一种新的极化SAR干涉测量改进算法，模拟实验结果表明，该算法可以进一步提高测量精度。

The introduction of polarimetry to SAR interferometry makes it possible to improve the interferometric measurement resolution of the under-vegetation terrain and to estimate the height of vegetation targets. This paper introduces a new algorithm of polarimetric SAR interferometry, which can greatly improve the precision of the measurement. The coherent model of vegetation is used as the input of the polarimetric interferometric SAR system to get the simulation data, and the data is used to analysis and test the presented algorithm.