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分析了多入多出系统测向精度问题。提出了天线接收端利用圆形天线阵的布阵形式。精度分析是在该阵列形状下进行的。理论上分析了天线阵列形式与角度估计之间的关系。并在此条件下,分析了影响角度估计精度的各个参数。在此基础上推导了角度估计精度公式,通过计算机仿真进行验证。并将该种阵列形式与常规的阵列进行了对比,为以后多入多出天线系统的构建提供了一定的参考参数。以及在对MIMO系统性能进行评估时,影响评估参数的影响因子。
The problem of multi-entry and multi-output system DF accuracy is analyzed. The antenna receiving end uses a circular array of antenna array. Accuracy analysis is performed under the shape of the array. Theoretical analysis of the relationship between the antenna array form and angle estimation. Under these conditions, the various parameters that affect the accuracy of angle estimation are analyzed. Based on this, the angle estimation accuracy formula is derived and verified by computer simulation. Compared with the conventional array, this kind of array is provided with certain reference parameters for the construction of multiple input multiple antenna systems. And the factors that influence the evaluation parameters when evaluating the performance of a MIMO system.