摘要
本文从信号合成原理出发研究了一种基于相位干涉的相控阵天线外场校准新方法,并结合超定方程组求解推导了相位差公式.该方法利用移相器进行通道相移特定状态的切换,通过多通道合成的功率值解算实现了对相位差的求解.对算法的机理分析和外场实验表明,这种校准技术正确有效.
From the principle of signal synthesis,a new outfield calibration method is presented based on phase interferometric,and phase difference formula is derived with the combination of overdetermined equations solution.Special state shift is realized with phase shifter,and phase difference is obtained by multiple channel power synthesis.The mechanism analysis and the outfield experiments show that this method is efficient and correct.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2011年第12期2820-2823,共4页
Acta Electronica Sinica
关键词
相控阵天线
校准
功率测量
相位干涉
phased array antenna
calibration
power-measurement
phase interferometric
