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采用盖尔圆半径修正峰均功率比的检测方法

焦亚萌 黄建国 侯云山

焦亚萌, 黄建国, 侯云山等 . 采用盖尔圆半径修正峰均功率比的检测方法[J]. 北京航空航天大学学报, 2012, (4): 444-448.
引用本文: 焦亚萌, 黄建国, 侯云山等 . 采用盖尔圆半径修正峰均功率比的检测方法[J]. 北京航空航天大学学报, 2012, (4): 444-448.
Jiao Yameng, Huang Jianguo, Hou Yunshanet al. Detection of the number of sources using peak-to-average power ratio modified by Gerschgorin radii[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (4): 444-448. (in Chinese)
Citation: Jiao Yameng, Huang Jianguo, Hou Yunshanet al. Detection of the number of sources using peak-to-average power ratio modified by Gerschgorin radii[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (4): 444-448. (in Chinese)

采用盖尔圆半径修正峰均功率比的检测方法

基金项目: 国家自然科学基金资助项目(60972152);国家重点实验室基金资助项目(90140C2304080607);航空科学基金资助项目(2009ZC53031);西北工业大学基础研究基金资助项目(NPU-FFR-W018102)
详细信息
  • 中图分类号: TN 911.7

Detection of the number of sources using peak-to-average power ratio modified by Gerschgorin radii

  • 摘要: 针对无人水下航行器工作环境复杂迫切需要提高其对多目标的检测能力的问题,提出了一种采用盖尔圆半径修正峰均功率比的信息论方法(PGAIC, An Information Criterion using Peak-to-average Power Ratio Modified by Gerschgorin Radii).该方法首先用采样协方差矩阵的特征向量对接收数据进行加权,计算其峰均功率比,然后对采样协方差矩阵用转换矩阵进行盖尔圆变换,用盖尔圆半径修正对应的峰均功率比值,并将修正后的峰均功率比值应用于新的信息论方法得到PGAIC判源准则.仿真结果表明,PGAIC方法低信噪比下检测性能优于传统的AIC(Akaike Information Criterion)和MDL(Minimum Description Length)等方法,且不受目标强度差的影响.

     

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出版历程
  • 收稿日期:  2010-12-31
  • 刊出日期:  2012-04-30

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