一种未知信源数的共形阵DOA算法

doi:10.3969/j.issn.1001-2400.2015.03.021

J4 ›› 2015, Vol. 42 ›› Issue (3): 122-128.doi: 10.3969/j.issn.1001-2400.2015.03.021

一种未知信源数的共形阵DOA算法

杨群;曹祥玉;高军;李思佳

(空军工程大学信息与导航学院，陕西西安 710077)

收稿日期:2014-04-22 出版日期:2015-06-20 发布日期:2015-07-27
通讯作者: 杨群
作者简介:杨群(1985-)，男，空军工程大学博士研究生，E-mail: yangqunjyb@163.com．
基金资助:
国家自然科学基金资助项目(61271100，61471389)；陕西省自然科学基金研究重点资助项目(2010JZ010)；陕西省自然科学基金资助项目(2012JM8003)

Algorithm for conformal array DOA estimation with an unknown number of sources

YANG Qun;CAO Xiangyu;GAO Jun;LI Sijia

(Information and Navigation Institute, AFEU, Xi'an 710077, China)

Received:2014-04-22 Online:2015-06-20 Published:2015-07-27
Contact: YANG Qun

摘要/Abstract

摘要：

针对目前绝大多数共形阵波达方向估计算法需要进行信源数估计且波达方向估计性能易受信源数估计误差影响的问题，提出了一种引入虚拟期望信号的未知信源数共形阵波达方向估计算法．在介绍共形阵窄带信号接收模型及自适应波束控制原理的基础上，利用最大信干噪比准则下的最优权矢量对引入虚拟期望信号后的阵列接收数据进行加权处理，以阵列输出的信噪比作为波达方向估计参数，从而实现来波信号的准确估计．整个过程不需要以信源数作为先验知识，避免了波达方向估计过程中信源数的判断环节．对所提算法进行了仿真实验，结果表明，该算法是有效可行的，且其性能要优于MUSIC算法．

关键词: 共形阵, 波达方向估计, 信源数估计, 虚拟期望信号

Abstract:

An algorithm for conformal array DOA estimation with an unknown number of sources is developed to solve the problem that most of the DOA algorithms are based on the prior knowledge of the number of sources and the estimation error of the number of sources leads to the degradation of DOA algorithm performance. This method is realized by introducing the pseudo expected signal. Firstly, the received narrow band signal of the conformal array is modeled and the adaptive beamforming theory is introduced. The optimum weight deduced by the Maximum signal to inference and noise ratio (SINR) is applied to the received signal and the pseudo expected signal and the conformal array output signal to noise ratio (SNR) is regarded as the parameter of the DOA to accomplish the estimation. During the processing, the proposed method does not need the prior knowledge of the number of sources and the signal number estimation is avoided. Finally the validity of the algorithm is verified by simulation experiments. The simulation results show that the algorithm is effective and superior to the MUSIC (multiple signal classification) algorithm.

Key words: conformal array, direction of arrival, estimation of source number, virtual pseudo expected signal

杨群;曹祥玉;高军;李思佳. 一种未知信源数的共形阵DOA算法[J]. J4, 2015, 42(3): 122-128.

YANG Qun;CAO Xiangyu;GAO Jun;LI Sijia. Algorithm for conformal array DOA estimation with an unknown number of sources[J]. J4, 2015, 42(3): 122-128.

参考文献

［1］ Tuan Dohong, Fisch W, Russer P. Direction Finding Using Spectral Estimation with Arbitrary Antenna Arrays ［C］//Proceedings of IEEE MTT-S International Microwave Symposium Digest. Piscataway: IEEE, 2001: 1387-1390.
［2］ Kim K, Sarkar T K. DOA Estimation Utilizing Directive Elements on a Conformal Surface ［C］//Proceedings of IEEE 2003 Radar Conference. Piscataway: IEEE, 2003: 91-96.
［3］ Yang Peng,Yang Feng, Nie Zaiping. DOA Estimation with Sub-array Divided Technique and Interpolated ESPRIT Algorithm on a Cylindrical Conformal Array Antenna ［J］. Progress in Electromagnetics Research, 2010, 103: 201-216.
［4］ Yan F G, Jin M, Qiao X. Low-complexity DOA Estimation Based on Compressed MUSIC and Its Performance Analysis［J］. IEEE Transactions on Signal Processing, 2013, 61(8): 1915-1930.
［5］杨鹏, 杨峰, 聂在平, 等. MUSIC算法在柱面共形阵天线阵DOA估计中的应用研究［J］. 电波科学学报, 2008, 23(2): 288-291.
Yang Peng, Yang Feng, Nie Zaiping et al. DOA Estimation of Cylindrical Conformal Array by MUSIC Algorithm［J］. Chinese Journal of Radio Science, 2008, 23(2): 288-291.
［6］ Yang P, Yang F, Nie Z P. DOA Estimation with Subarray Divided Technique and Interpolated ESPRIT Algorithm on a Cylindrical Conformal Array Antenna［J］. Progress in Electromagnetics Research, 2010, 103: 201-216.
［7］杨鹏, 杨峰, 聂在平, 等. 基于共形天线阵的免搜索来波方向估计算法研究［J］. 电波科学学报, 2012, 27(2): 242-247.
Yang Peng, Yang Feng, Nie Zaiping, et al. Search-free DOA Estimation Algorithms Based on Conformal Antenna Array［J］. Chinese Journal of Radio Science, 2012, 27(2): 242-247.
［8］ Si Weijian, Wan Liangtian, Liu Lutao, et al. Fast Estimation of Frequency and 2-D Doas for Cylindrical Conformal Array Antenna Using State-space and Propagator Method［J］. Progress in Electromagnetics Research, 2013, 137: 51-71.
［9］杨鹏, 杨峰, 聂在平, 等. 基于圆柱共形阵的快速来波方向估计［J］. 电波科学学报, 2012, 27(1): 61-65.
Yang Peng, Yang Feng, Nie Zaiping, et al. Fast DOA Estimation Based on Cylindrical Conformal Array［J］. Chinese Journal of Radio Science, 2012, 27(1): 61-65.
［10］ Chen Chena, Zhang Xiaofei. A Low-complexity Joint 2D-DOD and 2D-DOA Estimation Algorithm for MIMO Radar with Arbitrary Arrays［J］. International Journal of Electronics, 2013, 100(10): 1455-1469.
［11］王布宏, 郭英, 王永良, 等. 共形天线阵列流形的建模方法［J］. 电子学报, 2009, 37(3): 481-484.
Wang Buhong, Guo Ying, Wang Yongliang, et al. Array Manifold Modeling for Conformal Array Antenna［J］. Acta Electronica Sinica, 2009, 37(3): 481-484.
［12］张树银, 郭英, 齐子森, 等. 共形阵列LFM信号多参数估计的传播算子算法［J］. 西安电子科技大学学报, 2013, 40(4): 181-187.
Zhang Shuyin, Guo Ying, Qi Zisen, et al. Propagator Method for Multiple-parameter Estimation of LFM Signal for Conformal Array Antenna［J］. Journal of Xidian University, 2013, 40(4): 181-187.
［13］ Mrio C, Andreas R, Visa K. DOA and Polarization Estimation for Arbitrary Array Configurations［J］. IEEE Transactions on Signal Processing, 2012, 60(5): 2330-2343.
［14］ Wax M, Kailath T. Detection of Signals by Information Theoretic Criteria［J］. IEEE Transactions on Acoustics, Speech, and Signal Processing, 1985, 33(2): 387-392.
［15］ Wax M, Ziskind I. Detection of the Number of Coherent Signals by MDL Principle［J］. IEEE Transactions on Acoustics, Speech, and Signal Processing, 1989, 37(8): 1190-1196.
［16］焦亚萌, 黄建国, 侯云山. 一种基于峰均功率比的信源个数检测新方法［J］. 电子与信息学报, 2011, 33(7): 1589-1593.
Jiao Yameng, Huang Jianguo, Hou Yunshan. A New Method for Source Number Detection Based on Peak-to-average Power Ratio［J］. Journal of Electronics ＆ Infomation Technology, 2011, 33(7): 1589-1593.
［17］杨志伟, 贺顺, 张娟, 等. 利用数据最小冗余拟合的信源数估计方法［J］. 西安电子科技大学学报, 2012, 39(4): 52-56.
Yang Zhiwei, He Shun, Zhang Juan, et al. Estimation of the Number of Source via Minimal Redundancy Fitting［J］. Journal of Xidian University, 2012, 39(4): 52-56.
［18］司伟建, 林晴晴. 基于特征子空间投影的信源数估计方法［J］. 系统工程与电子技术, 2012, 34(7): 1318-1322.
Si Weijian, Lin Qingqing. Estimation of the Number of Signals Based on Characteristic Subspace Projection［J］. Systems Engineering and Electronics, 2012, 34(7): 1318-1322.

[1]	王剑书,樊养余,杜瑞,吕国云. 一种用于矩形阵列的二维波达方向估计方法[J]. 西安电子科技大学学报, 2019, 46(4): 122-129.
[2]	张政和,李逸洋,张林让,刘楠. 二维面阵子空间重构快速估计方法[J]. 西安电子科技大学学报, 2019, 46(3): 32-38.
[3]	宫健;楼顺天;张伟涛. 一种强干扰条件下阵列天线波达方向估计方法[J]. 西安电子科技大学学报, 2018, 45(1): 168-172.
[4]	刘帅琦;王布宏;李龙军;李夏;曹帅. 二维混合MIMO相控阵雷达的DOA估计算法[J]. 西安电子科技大学学报, 2017, 44(3): 157-163.
[5]	赵永红;张林让;刘楠;解虎. 采用协方差矩阵稀疏表示的DOA估计方法[J]. 西安电子科技大学学报, 2016, 43(2): 58-63+101.
[6]	解虎;冯大政;袁明冬. 一种采用协方差矩阵稀疏表示的DOA估计方法[J]. J4, 2015, 42(1): 35-41.
[7]	杨东;廖桂生;朱圣棋;王凯. 阵列信号降采样低秩矩阵的恢复方法[J]. J4, 2014, 41(5): 30-35.
[8]	张学敬;杨志伟;廖桂生. 半球共形阵列的两种虚拟变换方式性能对比[J]. J4, 2014, 41(3): 33-40.
[9]	刁鸣;安春莲. 独立信号与相干信号并存的二维DOA估计新方法[J]. J4, 2013, 40(5): 66-71+98.
[10]	张树银;郭英;齐子森;霍文俊. 共形阵列LFM信号多参数估计的传播算子算法[J]. J4, 2013, 40(4): 181-187.
[11]	蔡晶晶;李鹏;赵国庆. RD-MUSIC的二维DOA估计方法[J]. J4, 2013, 40(3): 81-86+144.
[12]	朱伟;陈伯孝;陈根华;杨明磊. 用干涉式APES算法实现干涉阵盲DOA估计[J]. J4, 2013, 40(1): 189-196.
[13]	王桂宝;陶海红;王兰美. 电磁矢量传感器取向误差自校正方法[J]. J4, 2012, 39(6): 66-69.
[14]	杨志伟;贺顺;张娟;徐青. 利用数据最小冗余拟合的信源数估计方法[J]. J4, 2012, 39(4): 52-56.
[15]	司伟建;蓝晓宇;刘学. 提高二维DOA估计分辨率的改进MUSIC算法[J]. J4, 2012, 39(2): 138-144.

一种未知信源数的共形阵DOA算法

Algorithm for conformal array DOA estimation with an unknown number of sources

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0