西安电子科技大学学报（自然科学版）2017，Vol.44Issue(1)：77-82,145,7.DOI:10.3969/j.issn.1001-2400.2017.01.014
一种高效的低相关区正交多相码设计方法
Efficient design method for the low correlation zone orthogonal polyphase code
摘要
Abstract
Multiple input multiple output (MIMO) radar can fundamentally improve radar performance by using the orthogonal polyphase code with a low correlation zone( LCZ) in some conditions . A novel approach based on the prediction model is proposed to design such orthogonal signals more efficiently and more effectively than the traditional optimization method . An initial polyphase code set with a short code‐length is randomly generated as a basis first , and then minimizing the weighed energy of autocorrelation sidelobes and cross‐correlation in the LCZ to predict the next code of each signal continuously , until reaching any appointed code‐length . Compared with the common optimization methods , the computational complexity is lower due to the recursive calculation of the correlation function , and especially , the obtained waves have a lower autocorrelation peak sidelobe and cross‐correlation peak , meeting the deduced theoretical bound of the ratio of peak sidelobe to mainlobe .关键词
多输入多输出雷达/低相关区/正交多相码/预测模型/理论界/低复杂度Key words
multiple input multiple output ( MIMO ) radar/low correlation zone ( LCZ)/orthogonal polyphase code/prediction model/theoretical bound/low complexity分类
信息技术与安全科学引用本文复制引用
张威,杨明磊,陈伯孝..一种高效的低相关区正交多相码设计方法[J].西安电子科技大学学报（自然科学版）,2017,44(1):77-82,145,7.基金项目
国家自然科学基金资助项目（61571344）；中央高校基本科研业务费专项资金资助项目 （）
