地基雷达测量精度自鉴定技术
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V19;TN958.8


Self-Calibration Technology of Ground-Based Radar
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    摘要:

    精度鉴定是保证雷达有效工作的重要保证,目前我国的雷达精度鉴定方法都是硬比方法,鉴定周期较长、协调工作量大。针对该问题,提出了一种通过跟踪一般低轨卫星实现地基雷达测量精度自鉴定的方法,设计了采用自鉴定方法校准雷达测元零值的技术方案,明确了数据处理流程,给出了关键数学模型。通过无噪声仿真验证证明了本文方法的正确性和有效性,通过有噪声仿真验证发现了测元随机误差与估计轨道参数间的相互影响和耦合效应,为后续工程应用和技术改进积累了经验。

    Abstract:

    Calibration is an important work to ensure the measuring accuracy of radar. All the methods of calibration in China are to compare the measure data of radar with the more accuracy position data of space target. It is a time-consuming work with a large workload of coordination problems. A self-calibration method is proposed in this paper, in which low orbit satellite is tracked by ground-based radar. The design scheme of self-calibration, which evaluates biases of radar measurements, is given with the data processing and the key algorithms. The correctness and effectiveness of the proposed method is verified by simulation verification, which uses noise-free measuring data. The interaction and coupling effects between the random errors of the measurements and the estimated orbit parameters are found through noise simulation verification, which has accumulated experience for subsequent engineering application and technology improvement.

    参考文献
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张延鑫, 赵华, 崔凯.地基雷达测量精度自鉴定技术[J].南京航空航天大学学报,2018,50(S2):1-5

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  • 收稿日期:2018-03-23
  • 最后修改日期:2018-05-30
  • 在线发布日期: 2018-10-18
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