电子学报 ›› 2005, Vol. 33 ›› Issue (7): 1266-1270.

• 论文 • 上一篇    下一篇

基于累积变换的周期性对称调制模式的快速自动搜索算法

樊甫华1, 张万军1, 谭营2   

  1. 1. 解放军电子工程学院,安徽合肥 230037;2. 中国科学技术大学,安徽合肥 230027
  • 收稿日期:2004-06-05 修回日期:2005-03-22 出版日期:2005-07-25 发布日期:2005-07-25

A Fast and Automatic Searching Algorithm of Periodic and Symmetric Patterns Based on Accumulative Transformation Technique

FAN Fu-hua1, ZHANG Wan-jun1, TAN Ying2   

  1. 1. Electronic Engineering Institute of PLA,Hefei,Anhui 230037,China;2. University of Science and Technology of China,Hefei,Anhui 230027,China
  • Received:2004-06-05 Revised:2005-03-22 Online:2005-07-25 Published:2005-07-25

摘要: 借鉴平面变换技术,将密集雷达脉冲序列映射成平面位图矩阵,并提出自动搜索周期性对称调制模式的快速算法,用于分选密集信号环境下PRI受周期性对称调制的雷达脉冲.大量的仿真试验结果表明算法在密集信号环境下,分选PRI是周期性对称调制的雷达脉冲的平均准确率达到92%,平均漏选率只有5%,极大地提高了雷达脉冲分选的效率和准确性.最后给出模式搜索时间、脉冲分选平均准确率和平均漏选率随脉冲密度变化的结论.

关键词: 雷达信号处理, 周期性对称调制, 脉冲分选

Abstract: By borrowing ideas from the plane transformation technique,the dense radar pulse stream is mapped into a 2-D plane matrix.And a new algorithm for fast searching the periodic and symmetric patterns is proposed and applied to deinterleave the complex radar pulses with pulse repetition interval (PRI) modulated by a periodic and symmetrical function in dense pulse environments.Extensive experimental results show that the averaged accurate rate of this algorithm for deinterleaving the complex radar pulses with a periodic and symmetrical PRI in dense environments is about 92% and averaged missing rate is merely 5%.At last,conclusions that the pattern searching time,the averaged accurate rate and missing rate of this algorithm vary as the density of radar pulse stream,are given in details and presented in figures.

Key words: radar signal processing, periodic and symmetrical modulation, pulse deinterleaving, plane bitmap matrix

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