| 通过正则化实现整周模糊度快速搜索 |
| |
| 引用本文： | 徐彦田,程鹏飞,蔡艳辉,王华,任纪庆.通过正则化实现整周模糊度快速搜索[J].全球定位系统,2009,34(3):26-29. |
| |
| 作者姓名： | 徐彦田 程鹏飞 蔡艳辉 王华 任纪庆 |
| |
| 作者单位： | 1. 中国测绘科学研究院,北京,100039;辽宁工程技术大学,辽宁,阜新,123000
2. 中国测绘科学研究院,北京,100039 |
| |
| 摘 要： | 在讨论迭代双乔里斯基整数变换降相关性LAMBDA方法的基础上，发现解算历元数较少时方差一协方差阵轻微病态，提出了在分解前对方差一协方差阵正则化的改进法，实例证明改进后的方法需要历元数减少，搜索效率和稳定性高。
|
| 关 键 词： | LAMBDA方法 乔里斯基(Cholesky)分解 Tikhonov正则化 |
Quick Search of Ambiguity through Regularization |
| |
| XU Yan-tian,CHENG Peng-fei,CAI Yan-hui,WANG Hua,REN Ji-qing.Quick Search of Ambiguity through Regularization[J].Gnss World of China,2009,34(3):26-29. |
| |
| Authors: | XU Yan-tian CHENG Peng-fei CAI Yan-hui WANG Hua REN Ji-qing |
| |
| Institution: | 1.Chinese Academy of Surveying And Mapping;Beijing 100039 China;2.Liaoning Technical University;Liaoning Fuxin 123000 China |
| |
| Abstract: | This paper discusses the LAMBDA of iterative double-Cholesky integer transforming for decorrelation firstly,we found that the covariance matrix may be abnormity when a few epochs are used.So we introduce a modified method that the covariance matrix is regularized before decorrelating admissible integer transformation.The sample demonstrates that the modified method needs a smaller number of epochs and is more stable. |
| |
| Keywords: | LAMBDA Cholesky Decorrelation Tikhonov Regularization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
