摘要
为了对随机相位误差对于相控阵天线波束指向精度和副瓣电平的影响进行分析,以一维均匀直线阵为模型,采用概率统计的手段对波束指向误差的数学期望、方差和峰值副瓣电平进行了推导,并对此结果进行了计算机仿真验证和比较。仿真结果表明,理论公式推导得到的结论与仿真实验的各项结果吻合良好。
The effects of random signal phase errors on the beam pointing accuracy and sidelobe levels of phased array antenna are analyzed. Based on the model of one-dimensional uniform linear array, The theories of probability and statistics were used to deduce the mathematical expectation, variance and peak sidelobe level of beam pointing error. The deduced result was verified and compared by computer simulation. The simulation result shows that the conclusion of the theretical formula derivation is in agreement with that of simulation experiment.
出处
《现代电子技术》
2013年第9期61-63,共3页
Modern Electronics Technique
关键词
随机相位误差
相控阵天线
波束指向精度
副瓣电平
random phase error
phased array antenna
beam pointing accuracy
sidelobe level
