现代防御技术2012，Vol.40Issue(6)：97-102,6.DOI:10.3969/j.issn.1009-086x.2012.06.018
基于内插阵列变换的非圆信号MUSIC实值算法
Non-Circular MUSIC Real-Valued Algorithm Based on Virtual Interpolated Array
摘要
Abstract
A non-circular multiple signal classification( MUSIC ) real-valued algorithm based on virtual interpolated array ( VIA-NC-MUSIC real-valued algorithm) is proposed. Firstly, the real array output is virtually transformed by utilizing transformation matrix which is obtained through the real array manifold and virtual array manifold. Then, according to the characteristic that the signal sources are real-valued, the real part and imaginary part of the transformed array output are obtained and the two parts can be reconstructed in series to extend dimensions, and a multiple signal classification MUSIC direction of arrival (DOA) estimation algorithm is obtained. The computational complexity of VIA-NC-MUSIC real-valued algorithm is also analyzed, and its computational complexity is compared with complex-valued algorithm' s computational complexity, and the new algorithm' s computational complexity is much lower. Simulation results show that if sensor position errors exist, the performance of the new algorithm is similar to the cali-brated non-circular MUSIC algorithm (NC-MUSIC algorithm) by using virtual interpolated array (VIA) for the calibrated sensor position data, and this algorithm also keeps the performance in high accuracy and high resolution, and the performance of the new algorithm is obviously better than that of the non-calibrated NC-MUSIC algorithm in the case of two-dimension sensor position errors.关键词
阵列信号处理/DOA估计算法/非圆信号MUSIC算法/实值算法/内插阵列变换Key words
array signal processing/direction of arrival ( DOA ) estimation algorithm/non-circular multiple signal classification (MUSIC) algorithm/real -valued algorithm/virtual interpolated array分类
信息技术与安全科学引用本文复制引用
陈浩,李思佳,贾伟..基于内插阵列变换的非圆信号MUSIC实值算法[J].现代防御技术,2012,40(6):97-102,6.基金项目
陕西省电子信息系统综合集成重点实验室基金项目(201102Y05) （201102Y05）
空军工程大学研究生创新课题(20110301) （20110301）
空军工程大学电讯工程学院科研创新基金项目(DYCX1040) （DYCX1040）
