| 基于非均匀采样间隔的数据关联算法研究 |
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| 引用本文： | 刘兆磊,徐振来,张光义,郭燕昌.基于非均匀采样间隔的数据关联算法研究[J].南京理工大学学报(自然科学版),2007,31(3):327-331. |
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| 作者姓名： | 刘兆磊 徐振来 张光义 郭燕昌 |
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| 作者单位： | 1. 西安电子科技大学,雷达信号处理国防重点实验室,陕西,西安,710071;南京电子技术研究所,江苏,南京,210013
2. 南京电子技术研究所,江苏,南京,210013 |
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| 摘 要： | 针对工程中普遍存在的非均匀采样目标跟踪问题,给出了基于多扫描的后向递归概率数据关联算法实现过程,讨论了判断目标丢失的准则.对分别基于一维和多维扫描数据进行数据关联判决的不同算法的性能进行了仿真分析.仿真结果表明:在采样次数不变的条件下,和应用单扫描的PDAF算法相比,多扫描非均匀采样方法能够获得更好的航迹维持性能.当目标检测概率越大、杂波密度越大、目标机动性能越大时,非均匀采样和均匀采样方法航迹维持性能的差别越大.
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| 关 键 词： | 目标跟踪 后向概率 概率数据关联 多维数据关联 非均匀 采样间隔 数据关联 算法研究 Sampling Based Algorithm Association 差别 机动性能 杂波密度 检测概率 航迹 采样方法 PDAF 单扫描 应用 条件 采样次数 仿真结果 |
| 文章编号： | 1005-9830（2007）03-0327-05 |
| 修稿时间： | 2005-03-282007-03-09 |
Data Association Algorithm Based on Non-uniform Sampling |
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| LIU Zhao-lei,XU Zhen-lai,ZHANG Guang-yi,GUO Yan-chang.Data Association Algorithm Based on Non-uniform Sampling[J].Journal of Nanjing University of Science and Technology(Nature Science),2007,31(3):327-331. |
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| Authors: | LIU Zhao-lei XU Zhen-lai ZHANG Guang-yi GUO Yan-chang |
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| Abstract: | The procedure applying the backward recursive probabilistic data association filtering algorithm based on muhi-scan is presented. The rules of track losing judgment are discussed. Simulations are made to compare the performance of data association algorithm based on multi-scan and single scan considering the non-uniform sampling problem that is common in practice for target track- ing. On the condition of the same samples, the results show that non-uniform sampling can outperform uniform sampling in track maintainability when association algorithm based on multi-scan is used, and the more differences of performance are shown that the process noise is higher, the false alarm density is higher and the probability of detection is higher. |
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| Keywords: | target tracking retrodicted probability probabilistic data association muhi-dimensional association |
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