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

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.

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

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.