基于模拟退火算法校正天线阵列方向性误差

Calibration of directivity errors of antenna array based on simulated annealing

针对天线阵列方向性误差的校正问题,基于信号子空间的基本原理,结合模拟退火算法,提出了一种精确估计天线阵方向性的方法。该方法使用校正源少,稳定性好,即使在雷达工作、并且存在其它未知信号时,也能准确估计出天线阵的方向性。给出了应用该方法的具体步骤,通过仿真实验证明该方法的有效性。

To calibrate the directivity errors of antenna arrays, an accurate method for estimating the directivity of arrays, which combines the principle of signal subspace and the simulated annealing algorithm, is put forward. Only one assistant source is needed in this method. Furthermore, the method is robust because the calibrations can be accomplished even both the radar is operating and other unknown signals are existed. The specific steps of this algorithm are presented. Simulation results have shown that this method is accurate and efficient.