极化合成孔径雷达图像目标定向角

Orientation Angle of Target in Polarimetric Synthetic Aperture Radar images

定向角是极化合成孔径雷达(SAR)图像目标的一个重要参数,出于不同应用背景,定向角有多种定义方法。对8种不同定向角定义方法进行了比较,分析了其内在联系。得出Huynen方法和Schuler方法物理意义一致,前者适用于单视极化SAR数据,后者适用于多视情况。杨健方法、Cameron方法、Krogager方法和徐丰方法是等价的,适用于单视数据;Lee方法和安文韬方法等价,适用于多视数据。

The-orientation-angle-is-an-important-parameter-of-a-target-in-polarimetric-Synthetic-Aperture-Radar(SAR)-images.-There-are-many-different-definitions-of-the-orientation-angle-because-of-different-applications.-Eight-kinds-of-definitions-are-compared-and-their-relationships-are-analyzed.-Conclusions-are-obtained-as-follows.-The-physical-meaning-of-Huynen’s-method-is-consistent-with-that-of-Schuler’s-method.-The-former-is-used-for-single-look-PolSAR-data-and-the-latter-for-multi-look-case.-Yang’s-method,-Cameron’s-method,-Krogager’s-method-and-Xu’s-method-are-equivalent-for-single-look-data.-Lee’s-method-and-An’s-method-are-equivalent-for-multi-look-case.