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基于HGSAA的机会阵雷达离散频率编码波形设计 被引量:4

Discrete frequency code waveform design for OAR based on HGSAA
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摘要 机会阵雷达(opportunistic array radar,OAR)是一种以平台隐身性设计为核心的新体制雷达,设计适用于OAR系统的正交波形是研究的一个重要方面。对常规的雷达正交波形编码的搜索方法进行改进,使用混合遗传模拟退火算法,寻找出具有低自相关和互相关特性的雷达离散频率编码集合;并且考虑到算法适应度函数的重要性,引入灰关联度综合评价法则对其加以关联分析,根据关联度来引导算法搜索的方向,使产生的波形具备较好的性能。仿真结果表明,该算法可行且高效,在搜索最优离散频率编码方面优于其他搜索算法。 The orthogonal performanee is an important aspect for the opportunistic array radar (OAR) sys tem, which is a new radar concept with the core of designing the platform stealth. The searching methods for conventional radar orthogonal waveform are improved, by using the hybrid genetic simulated annealing algo- rithm to design the discrete frequency code waveform with low autocorrelation and cross-correlation. The novel algorithm marries simulated annealing with genetic algorithms and evaluates fitness function by the grey eorrela tion model, which decides the searching direction of algorithms and weights of fitness. The simulation results show that the proposed algorithm is effective for the design of orthogonal phase signals used in ()AR systems and superior to other algorithms.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2013年第9期1854-1860,共7页 Systems Engineering and Electronics
基金 国家自然科学基金(61071164 61271327) 航空基金(20100152001) 江苏高校优势学科建设工程资助课题
关键词 机会阵雷达 混合遗传模拟退火算法 离散频率编码波形 灰关联综合评价 opportunistic array radar (OAR) hybrid genetic simulated annealing algorithm (HGSAA) discrete frequency code waveform (DFCW) ~ grey correlation evaluation
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参考文献22

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