| 摘要: |
| 针对复杂环境下不同雷达观测测量准确度存在差异而导致观测数据质量存在差异的问题，提出了一种基于幅度辅助的对海雷达航迹起始方法。该方法首先利用幅度信息计算幅度似然比，并以幅度似然比的大小来表示观测数据质量的高低，然后将这种幅度信息引起的数据质量差异用于Hough变换参数空间积累后的初选航迹参数的一次修正，提高迭代滤波初值的准确性；然后对一次修正后的初选航迹进行多尺度聚类，利用简单的二次迭代滤波方法分析得到目标的真实航迹起始数目和航迹起始参数；最后通过仿真数据证明了所提方法的有效性和优越性。 |
| 关键词: 数据质量 航迹起始 幅度似然比 二次迭代滤波 |
| DOI：DOI:10.3969/j.issn.1672-2337.2019.05.007 |
| 分类号:TN957 |
| 基金项目:中国航空工业创新基金项目（No.2017ZC07009,2014ZC07003）；总装基金项目（No.6140413010302,61403120403） |
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| An Amplitude Aided Track Initiation Method for Sea Surveillance Radar |
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ZHANG Cun，HE Fengshou，WANG Yongkun
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AVIC Leihua Electronic Technology Research Institute，Wuxi 214063，China
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| Abstract: |
| For the problem that different radar measurements have different data qualities because of measurement accuracies varying with different radar measurements in the complex environment，this paper proposes an amplitude aided track initiation method for sea surveillance radar. This method firstly computes amplitude likelihood ratios that represent the data qualities of radar measurements，and then the amplitude likelihood ratios are used to modify the first filtered track parameters after Hough transformation，which can improve the accuracy of the initial value of iteration filtering. Furthermore，the modified first filtered track parameters are processed by combining the multi scaled clustering algorithm and secondary iteration filtering method to get the number of true track initiations and the track initiation parameters. Finally，the validity and superiority of the method are proved by simulation data. |
| Key words: data quality track initiation amplitude likelihood ratio secondary iteration filtering |
