阵列测向中的精确高速并行谱峰搜索算法  

Accurate High-Speed Parallel Algorithm on Peak Value Searching of Direction Finding

作　　者：郭跃[1] 王宏远[1] 陈思捷[1] 姚华熊[1] 

机构地区：[1]武汉华中科技大学电信系数字视频技术与通信研究所,湖北武汉430074

出　　处：《微电子学与计算机》2007年第12期50-54,共5页Microelectronics & Computer

基　　金：国家自然科学基金项目(60572049)

摘　　要：概述了阵列测向中的MUSIC算法,分析了该算法在实现过程中各个步骤所占用总运行时间的比例关系,证明了谱峰搜索占用了MUSIC算法的绝大多数时间。提出了3种高效的谱峰搜索算法。根据仿真结论和硬件实测数据设计了应用流水线和数据交织处理并行技术的硬件实现体系结构。最后讨论了两种不同空间谱构造方法对波达方向估计精度的影响,并通过仿真进行了验证。Based on summarizing MUSIC algorithm of direction finding, the author analyzes the proportion of every step to the whole run time of the implementation of MUSIC algorithm. It has been proved that peak values searching costs a majority of run time. Thus three kinds of peak values searching algorithms are brought out. According to the result of simulations and testings, the hardware architecture utilizing pipelining and interleaving parallel technologies is designed. At last, the accuracy of DOA estimation using two kinds constructing spatial spectrum is discussed. And the conclusions in this paper are verified by simulation experiments.

关 键 词：波达方向 MUSIC算法 空间谱 谱峰搜索 

分 类 号：TN911.23[电子电信—通信与信息系统]