| 摘要: |
| 由于传统波达方向(DOA)估计算法对接收天线阵列的阵元一致性要求高，即幅度和相
位响应要求一致，在工程应用中受到较大限制。针对该问题，结合均匀圆阵的特点，通
过引入阵元幅度和相位不一致因子对传统MUSIC算法的模型加以改进，提出了一种改进的MUS
IC算法。该算法降低了阵元的一致性要求，可通过迭代求解的方法来完成对多个信源来波方
向进行估计。仿真和分析结果表明，提出的算法可有效地进行多个目标的DOA估计。 |
| 关键词: 均匀圆阵 DOA估计 MUSIC算法 迭代处理 |
| DOI： |
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| 基金项目: |
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| An improved DOA estimation algorithm based on nonuniform response antenna circular arrays |
| ZHOU Xing-jian,HUANG Xing-li,SHAO Huai-zong |
| () |
| Abstract: |
| The traditional direction of arrival (DOA) estimation algorithm has high conform
ity with array amplitude and phase element of receiving arrays. Consequently it is limited s
eriously in engineering application. In this paper, an improved model of M
USIC algorithm is proposed based on the variances of uniform circular array elem
ent′s amplitude and phase, and it reduces the request of the conformity of the
array element. The improved algorithm can be utilized to estimate the direction
of the receiving waves from multiple information sources through iteration procedure.
The simulation results indicate that the proposed algorithm can estimate the DOA
from different targets effectively. |
| Key words: uniform circular array DOA estimation MUSIC algorithm iteration calculation |
