利用信源先驗(yàn)特征的混合測(cè)向算法
[Abstract]:The subspace class direction finding algorithm based on feature decomposition should know the number of sources, but in the case of small fast beat number, low signal-to-noise ratio and obvious signal strength difference between the sources, The traditional AIC information criterion and MDL criterion can not accurately judge the number of sources. This directly degrades the direction finding performance based on feature decomposition class algorithms, such as MUSIC method. In order to solve this problem, a hybrid direction finding algorithm based on the prior characteristics of sources is proposed. The algorithm not only makes use of the information that the source is sparse in angle to improve the accuracy of the number of sources, but also makes use of the non-circular characteristics of the source to improve the direction finding performance. The correctness of the method is verified by computer simulation.
【作者單位】: 電子科技大學(xué)電子工程學(xué)院;同方電子科技有限公司;
【基金】:國(guó)家自然科學(xué)基金(61172140)
【分類號(hào)】:TN911.7
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