| 一种基于UPF的干涉SAR相位展开方法 |
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| 引用本文： | 谢先明,皮亦鸣,彭保.一种基于UPF的干涉SAR相位展开方法[J].电子学报,2011,39(3):705-709. |
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| 作者姓名： | 谢先明 皮亦鸣 彭保 |
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| 作者单位： | 电子科技大学电子工程学院;西南科技大学信息工程学院; |
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| 基金项目： | 国家自然科学基金(No.60772143) |
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| 摘 要： | 提出一种不敏粒子滤波的相位展开方法.该方法是不敏粒子滤波器与路径跟踪策略以及全方位的局部相位梯度估计相结合的结果,不受模型噪声统计特性和线性条件约束,同时完成噪声消除和相位展开;利用不敏卡尔曼滤波器来进行粒子更新,使重要密度函数能够融入最新观测信息和更加符合真实状态的后验概率分布,从而提高了相位展开精度与效率.仿真和实...
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| 关 键 词： | 不敏粒子滤波 路径跟踪 合成孔径雷达干涉测量 |
| 收稿时间： | 2010-01-06 |
Phase Unwrapping:An Unscented Particle Filtering Approach |
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| XIE Xian-ming,PI Yi-ming,PENG Bao.Phase Unwrapping:An Unscented Particle Filtering Approach[J].Acta Electronica Sinica,2011,39(3):705-709. |
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| Authors: | XIE Xian-ming PI Yi-ming PENG Bao |
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| Institution: | XIE Xian-ming1,PI Yi-ming1,PENG Bao2(1.School of Electronic Engineering,University of Electronics Science and Technology of China,Chengdu,Sichuan 611731,China,2.Department of Information Engineering,Southwest University of Science and Technology of China,Mianyang,Sichuan 621006,China) |
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| Abstract: | This paper presents a phase unwrapping algorithm based on the unscented particle filter(UPF) for synthetic-aperture radar(SAR) interferometry.This method provides independence from noise statistics and is not constrained by the nonlinearity of the problem.This technique performs simultaneously noise filtering and phase unwrapping by the optimal data fusion approach.In addition,the importance density function is integrated with the latest observation information and is more in line with the posterior probabi... |
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| Keywords: | unscented particle filtering path-following strategy SAR interferometry |
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