基于微分几何的平面天线阵列测向精度研究

利用阵列流形的微分几何作为分析工具,构造了实际使用中常见的平面天线阵的几何结构,并对这些阵列结构的测向精度进行了研究和全面仿真。通过比较各种天线阵几何结构的优劣,可以从中选择一种合适的、最优的阵列结构,避免设计的盲目性和随意性。这为超分辨阵列结构的选择和设计提供了一条有效的途径,在实际应用中将具有十分重要的参考价值。

Study on the Direction-Finding Accuracy of Planar Antenna Array Based on Differential Geometry

The array manifold of sensor array is analysed using the tools of differential geometry, and a number of planar array configuration in the actual use is constructed. The ultimate direction-finding (DF)accuracy of these array geometries have been investigated and simulated. The suitable optimal array geometry is selected through comparison of diverse array geometries to avoid the blindness and willingness of the design. It supplies a valid way for the choice and design of super-resolution array configuration, and is of great value to actual applications.