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为了充分利用圆形阵列的方向特性,更好地服务于实际工程应用,提出了基于波束宽度、角度模糊、参数估计CRB下界的圆形阵列方向特性与圆阵半径和阵元数之间的关系矩阵。通过构建阵列数据模型,并利用数学推导来构造关系矩阵,有效地解决了在工程应用中对实际圆阵的构建依据问题。在数学推导过程中,针对各类圆阵的情况,考虑了对应阵列模型对方向特性的不同影响,圆形阵列方向特性关系矩阵满足不同条件下的工程应用要求,通过一系列的仿真实验得以证明。
In order to make full use of the directional characteristics of a circular array and to better serve the practical engineering applications, the relationship between the directional characteristics of a circular array and the radius and the number of array elements based on the beam width, angle ambiguity and parameter estimation CRB lower bound is proposed matrix. By constructing the array data model and using mathematical deduction to construct the relation matrix, the problem of constructing the basis of the actual circular array in engineering application is effectively solved. In the mathematical derivation process, the different effects of the corresponding array model on the directional characteristics are considered for all types of circular arrays. The directional matrix of circular arrays satisfies the requirements of engineering application under different conditions and is proved by a series of simulation experiments .