## 留言板

 引用本文: 赵永红, 张林让, 刘楠, 解虎. 一种新的基于稀疏表示的宽带信号DOA估计方法[J]. 电子与信息学报, 2015, 37(12): 2935-2940.
Zhao Yong-hong, Zhang Lin-rang, Liu Nan, Xie Hu. A Novel Method of DOA Estimation for Wideband Signals Based on Sparse Representation[J]. Journal of Electronics and Information Technology, 2015, 37(12): 2935-2940. doi: 10.11999/JEIT150423
 Citation: Zhao Yong-hong, Zhang Lin-rang, Liu Nan, Xie Hu. A Novel Method of DOA Estimation for Wideband Signals Based on Sparse Representation[J]. Journal of Electronics and Information Technology, 2015, 37(12): 2935-2940.

## A Novel Method of DOA Estimation for Wideband Signals Based on Sparse Representation

Funds:

The National Foundation for Key Laboratory (914XXX1002)

• 摘要: 该文提出一种基于稀疏表示的宽带信号波达方向(DOA)估计方法，解决稀疏表示方法在宽带信号DOA估计中由于基矩阵维数过大而使算法存储量和重构计算量大的问题。用单一频点的基矩阵代替频率和角度联合构建的基矩阵，使基矩阵的列数仅相当于一个频点处冗余基矩阵的列数，大大降低了稀疏重构方法的存储量和计算量。该方法首先对各频点的频域数据进行聚焦处理，将不同频率的数据堆叠到参考频率上并建立参考频率处的基矩阵，然后建立聚焦后的稀疏表示模型进行DOA估计，并采用奇异值分解进一步降低算法的运算量，最后给出残差门限的选择方法。该算法不仅适用于非相关信号，也可直接处理相关信号而不需要任何的去相关运算，且具有高的检测概率和估计精度，仿真实验和分析验证了该方法的有效性。
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##### 出版历程
• 收稿日期:  2015-04-13
• 修回日期:  2015-07-03
• 刊出日期:  2015-12-19

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