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多频连续波雷达系统脱靶量测量与目标跟踪算法研究

Research on Miss Distance Measurement and Target Tracking Algorithm for Multi-Frequency Continuous Wave Radar System

【作者】 李春昌

【导师】 刘峥;

【作者基本信息】 西安电子科技大学 , 导航、制导与控制, 2010, 硕士

【摘要】 论文是以多频连续波靶场测量雷达系统为背景,围绕着由多频连续波雷达测量数据求脱靶量的算法以及多目标跟踪相关算法的工程实现开展研究工作。论文对脱靶量测量技术作了研究与讨论,研究了多频连续波雷达系统在脱靶量测量中的应用。多频连续波雷达系统可以对多目标进行实时定位,因此可以实现目标脱靶量的计算。论文研究了由雷达测量数据求脱靶量的算法,并进行了仿真,对目标参数测量误差对脱靶量测量的影响进行了分析,并讨论了在不同的目标参数测量误差条件下对脱靶量的影响。通过仿真验证了理论推导的正确性。论文对雷达中数据处理技术的应用作了研究与讨论,深入研究了符合实际的滤波理论与目标跟踪理论;对目标运动模型、滤波与预测技术、各类数据关联算法和航迹起始算法等目标跟踪所涉及的主要内容进行了讨论;根据实际雷达跟踪要求,对最近邻滤波算法、联合概率数据关联算法和扩展卡尔曼滤波与不敏卡尔曼滤波算法、航迹起始算法等作了重点研究。采用了基于逻辑法的航迹起始算法,在工程应用过程中得到了较好的目标跟踪结果,也验证了所用方法的有效性。

【Abstract】 The algorithm of miss distance from the return wave of the multi-frequency Continuous Wave radar and its realization in engineering were discussed based on system of multi-frequency CW radar.Measure technical about miss distance have been studied and discussed; and the application of the muli-frequency CW radar system in the measure of miss distance was researched. The multi-frequency CW radar can orient the many targets by real time and realize the computation on the miss distance of the target. The algorithm of miss distance from the return wave of the radar was studied. The influence of measurement error about the target parameter on the measurement of the miss distance was analyzed and the influence of the target parameter in different measurement error on the miss distance was discussed. The theory was validated by the simulations.The application of the data process in radar was studied and discussed and the theories of filtering and the tracking that satisfy the reality were studied deeply too. The model of target motion, the technical of filtering and forecasting, all kinds of algorithm about data association, track initiation algorithm and so on were discussed. According to the demand of radar tracking in reality, NNF, Joint Probabilistic Data Association and EKF, UKF, track initiation algorithm and so on were studied on emphasis. Based on logic was applied, the good result of target tracking was obtained in the engineering application and the efficiency of the applied method was validated.

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