中国空间科学技术

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连续波雷达测量数据随机误差处理方法研究

易东云,朱炬波,王正明   

  1. 长沙国防科技大学
  • 发布日期:1998-12-25

STUDY OF PROCESSING METHOD OF RANDOM ERROR IN MEASURE DATA OF CONTINUOUS WAVE RADAR

Yi Dongyun Zhu Jubo Wang Zhengming (National University of Defense Tecnology, Changsha 410073)   

  • Published:1998-12-25
  • Supported by:
    国家863－306－ZD－03－3项目，国家自然科学基金

摘要： 针对差分方法和最小二乘法在处理连续波雷达跟踪数据的随机误差时，处理结果常常出现不一致的情况，对这两种方法的内在联系进行了深刻的研究。首次证明了“ｋ阶差分与ｋ＋１个点的ｋ－１次多项式的平滑残差具有完全相同的频谱特性”。针对雷达测量数据中随机误差时序相关性较强的实际情况，导出了相关条件下差分步长的计算公式。最后，提出了高精度分离数据中随机误差的非线性自由节点样条函数方法，该方法经仿真和大量实测数据处理检验是成功的。

关键词: 连续波雷达, 数据处理, 样条函数, 随机误差, 研究

Abstract: No correspondence of processing results in both LS and difference methods is always difficulty to explain clearly in practical. In this paper, first prove that k order difference has the same frequency response as (k 1) order polynomial smoothing of (k+1) data, which reveals the inner connection of two methods. Second, produce the computation formula of correlation interval. Finally, present the new method of separating random error from measure data. Theory and practical processing results show that the new method has high precision.