针对稀布阵的测向模糊问题,该文以虚拟阵列变换法和基于最小二乘估计的虚拟阵元法为例,从理论上分析了虚拟阵元法解测向模糊的可行性,并通过大量仿真实验加以验证,得出虚拟阵元的接收数据的产生依赖于实际阵元的变换区间,在这种情况下虚拟阵元法并不能有效的解模糊。
Considering the issue of angle ambiguity in estimating the directions of arrivals,this paper analyses the feasibility of ambiguity solving with virtual arrays using the virtual array transformation algorithm and the virtual array algorithm based on least squares estimator.Computer simulations confirm that the data of virtual array depends on the sector,and such algorithms can not solve the angle ambiguity problem effectively in this sense.