旋转单元电场矢量法的真解判定方法

旋转矢量法可被用来进行有源相控阵列的通道校准。每轮测试后在计算相应通道的幅相时会出现伪解。通过调整固定场矢量的幅度,进行两轮测试,判定两轮测试中绝对解不变的那组解为真解。其辨别方法,在有效判定真解的同时,也降低了计算量与测试量。另外,由于两轮测试时只需测量幅度信息,降低了测试设备复杂度。数值仿真结果证明了此方法的有效性。

Solution Decision Method for Rotating-element Electric-field Vector in Calibration

Rotating-element electric-field vector(REV)method is used for calibration of phased array antenna . The pseudo solution may appear when the amplitude and phase of array channels are calculated. This paper adjusts the amplitude of the fixed electric-field vector by changing the phase of elements to test twice. The true solution is the sets which absolute solution remain identical during the twice test. The method used in this paper reduces the computation and test load. Besides,because the amplitude is needed only,this method has advantage of low requirement for test system. The simulation results verifies the effectiveness of the method used in this paper.