| 基于遗传算法的InSAR系统干涉定标方法 |
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| 引用本文： | 汪金华,李品,陈卫东. 基于遗传算法的InSAR系统干涉定标方法[J]. 中国科学技术大学学报, 2010, 40(2). DOI: 10.3969/j.issn.0253-2778.2010.02.005 |
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| 作者姓名： | 汪金华 李品 陈卫东 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,安徽合肥,230027 |
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| 摘 要： | 在干涉合成孔径雷达中,干涉参数的测量精度对高程重建精度存在不可忽视的影响,为了得到精确的干涉参数,通常要利用地面控制点(GCPs)对这些参数进行联合校准(即定标).针对传统定标方法存在的敏感度矩阵固有病态问题,提出了一种基于遗传算法的干涉定标方法,它避免了病态敏感度矩阵的求逆,提高了干涉参数定标的精度和求解的稳定性.并且有效地构造了定标算法的适应度函数,采取了遗传概率的自适应调整策略,有利于优化算法的收敛性能.仿真结果验证了算法的有效性和稳定性.
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| 关 键 词： | 干涉定标 干涉合成孔径雷达 遗传算法 |
An interferometric calibration method based on genetic algorithm for InSAR system |
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| WANG Jinhua,LI Pin,CHEN Weidong. An interferometric calibration method based on genetic algorithm for InSAR system[J]. Journal of University of Science and Technology of China, 2010, 40(2). DOI: 10.3969/j.issn.0253-2778.2010.02.005 |
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| Authors: | WANG Jinhua LI Pin CHEN Weidong |
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| Affiliation: | WANG Jinhua,LI Pin,CHEN Weidong(Department of Electronic Engineering , Information Science,University of Science , Technology of China,Hefei 230027,China) |
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| Abstract: | In the InSAR system,the measurement accuracy of interferometric parameters plays an important role in the procedure of topography reconstruction.Normally,in order to get the precise interferometric parameters,ground control points(GCPs) are used to rectify them.In view of the morbidity of the sensitivity matrix that exists in traditional interferometric calibration methods,a new interferometric calibration method based on genetic algorithm(GA) was proposed.This new method can avoid the inverse calculation o... |
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| Keywords: | interferometric calibration InSAR genetic algorithm |
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