摘要
在实际环境中,由于受空间上的约束,测向天线阵的布设会受到一定的限制,阵列结构是否合理将直接影响测向的性能;针对实际应用环境对阵列结构的限定及空间二维测向的实际问题,建立了利用任意结构阵列进行二维测向的数学模型,研究了基于MUSIC算法的任意结构阵列的二维测向问题,分析了任意结构阵列的阵列结构对测向模糊性的影响,对矩形平面阵的阵元进行稀疏化可得到更好的测向性能,仿真结果证明了数学模型的有效性和算法的准确性。
The array＇s arrangement subjects to severe limitations because the array＇a structure is strictly controlled by the actual detecting environment. The array＇s configuration will directly affects the array＇s direction-finding precision. In the paper, a mathematical model is de-duced for the random geometry plane antenna array to measure the two-dimensional DOA, which aims to some particular application envi-ronment and unusual need of the array＇s configuration. The random geometry plane array＇s two-dimensional DOA is studied which is based on the classical MUSIC. The geometry effects of the antenna array to DOA ambiguity is analysed in the paper. The simulation results dis-plays the array＇s DOA performance, and also confirms the validity of this model and accuracy of theoretical analysis.
出处
《计算机测量与控制》
北大核心
2013年第4期886-888,共3页
Computer Measurement &Control
基金
总装通保部预研项目
关键词
DOA
阵列结构
任意结构阵列
模糊性
direction-of-arrival
array configuration
random geometry array
ambiguity
