基于非圆信号的阵列扩展方法

吴晨曦; 张旻; 王红军; 李歆昊

doi:10.15892/j.cnki.djzdxb.2014.05.041

2014 , Vol. 34 >Issue 5: 165 - 168

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2014.05.041

摘要

提出了一种基于非圆信号的稀疏分解DOA估计方法,用于解决非圆信号数多于阵元数时的DOA估计问题。该方法首先利用非圆信号为实值信号的特点,用阵列上的接收数据及其共轭拼接构造一个新的扩展矩阵,选择扩展协方差矩阵的第一列作为稀疏分解向量,利用扩展阵列的导向矢量构造完备字典,建立了DOA估计的稀疏模型。仿真结果证明了该方法的可行性和有效性。

关键词： 波达方向; 非圆信号; 阵列扩展; 稀疏分解

本文引用格式

吴晨曦 , 张旻 , 王红军 , 李歆昊 . 基于非圆信号的阵列扩展方法[J]. 弹箭与制导学报, 2014 , 34(5) : 165 -168 . DOI: 10.15892/j.cnki.djzdxb.2014.05.041

Abstract

A sparse decomposition method was proposed to estimate direction of arrival (DOA) problem of non-circular sources. Firstly, a new output of extended array was concatenated with their conjugate component according to the properties of real value of non-circular signals. After that, select the first of the extended array as sparse decomposition vectors and create over-complete dictionary with extended steering vectors, a sparse DOA estimation model was constructed. The simulation results show feasibility and effectiveness of this method.

Key words： direction of arrival; non-circular signals; array extension; sparse decomposition

参考文献

[1]	Schmidt RO Multiple emitter location signal parameter estimation[J]. IEEE Trans Antenna and Propagation, 1986, 34(3): 276-280.
[2]	Zhi-Long S, Fei J, Gang W. Extending music-like algorithm DOA estimation with more sources than sensors[C] // Proceedings of the 2003 International Conference on Neural Networks and Signal Processing, 2003.
[3]	Liu Z M, Huang ZT, Zhou Y Y, et al. Direction-of-arrival estimation of noncircular signals via sparse representation[J]. IEEE Transactions on Aerospace and Electronic Systems, 2012, 48(3): 2690-2698.
[4]	Carlin M, Rocca P, Oliveri G, et al. Direction-of-arrival estimation through bayesian compressive sensing strategies[J]. IEEE Transaction on Antennas Propagation, 2013, 61(7): 3828-3838.
[5]	Sha Z, Liu Z, Huang Z, et al. Covariance-based direction-of-arrival estimation of wideband coherent chirp signals via sparse representation[J]. Sensors, 2013, 13(9): 11490-11497.
[6]	朱然刚, 李鹏飞. 高斯色噪声下的相干信号 DOA 高分辨率估计[J]. 电路与系统学报, 2012, 17(5): 69-75.
[7]	Cibat P, Vandendorpe L. Blind carrier frequency offset estimation for noncircular constellation based transimissions[J]. IEEE Trans. on Signal Processing, 2003, 51(5): 1378-4389.
[8]	Roman T, Viisuri S, Kolvunnen V. Performance bound for blind CFO estimation in OFDM with real-valued constellations[C] // Vehicular Technology Conference, 2004, VTC2004-Fall. 2004 IEEE 60th, 2004:3866-3870.
[9]	Galy J. Antenne adaptaitive: Du second order aux orders spurious, applications aux signaux de telecommunications[D]. Toulouse, France: University Paul Sabatier, 1998.
[10]	Zoubir A, Charg P, Wang Y. Non circular sources localization with ESPRIT[C] // The 6th European Conference on Wireless Technology.
[11]	Min Lin, Ling Ling Cao, Jian Ouyang. DOA estimation using virtual array technique noncircular signals[J]. IEEE Transactions on Information Theory, 2012, 50(9): 2558-2567.
[12]	王永良, 陈辉, 彭应宁. 空间谱估计理论与算法[M]. 北京: 清华大学出版社, 2004.
[13]	Stoica Babu P, Li J. SPICE: A sparse covariance-based estimation method for array processing[J]. IEEE Transactions on Signal Processing, 2011, 59(2): 629-638.
[14]	Khajehnejad M, Xu Avestimehr A, Hassibi B. Analyzing weighted 11 minimization for sparse recovery with nonuniform sparse models[J]. IEEE Transactions on Signal Processing, 2011, 59(5): 1985-2001.
[15]	CHEN Hao-bing, DONOHO DL, SAUNDERS M A. Atomic decomposition by basic pursuit[J]. SIAM Joumal on Scientific Compting, 2001, 20(1): 33-66.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献