谢先明

• 1:桂林电子科技大学信息与通信学院

摘要(Abstract)：

针对传统多基线干涉合成孔径雷达存在系统高度模糊数与缠绕相位解缠可靠性之间不可兼顾的矛盾,该文提出一种基于扩展卡尔曼滤波(EKF)的多基线SAR干涉相位展开方法。该方法利用全方位局部相位梯度联合估计技术直接从多幅复干涉图抽样谱中提取相位梯度信息,同时利用EKF强大的数据融合能力以信息融合的方式同时完成二维噪声抑制及相位展开,既有利于解决相位展开中的"坡度欠估计"问题,又避免了传统方法在相位展开之前须进行噪声滤波的不足。多基线模拟数据和单基线实测数据处理结果验证了方法的有效性。

关键词(KeyWords)： 干涉合成孔径雷达;相位展开;全方位局部相位梯度联合估计技术

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41201479,61261033);; 桂林电子科技大学广西信息科学实验中心支持项目(20130307);; 桂林电子科技大学科研启动项目(UF11015Y)

作者(Author): 谢先明

DOI: 10.16251/j.cnki.1009-2307.2015.02.009

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