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围绕天线阵增益、波束宽度、指向和副瓣电平等指标，分析了幅相误差、阵元失效对稀疏阵列天线性能的影响。应用概率统计原理，导出了具有幅相误差、阵元失效时稀疏阵天线阵增益损失、波束宽度、指向、副瓣电平的估计公式、并得出一些有益结论。
The influences of amplitude and phase error and array element failure on the performance of sparse array antenna are analyzed, focusing on the antenna array gain, beamwidth, pointing and sidelobe level. Based on the principle of probability and statistics, the estimation formulas of gain loss, beam width, direction and sidelobe level of the array antenna with amplitude and phase error, array element failure are deduced and some useful conclusions are drawn.