摘要： 针对失效阵元给阵列性能带来的影响，提出一种基于信号重构的阵列失效校准方法。对于理想的均匀分布线列阵，2个相邻阵元相对同一信号源的接收信号之间仅相差一个固定的相移。利用这一点，原本已经失真的失效阵元的输出可以通过合成其他正常阵元的输出信号得到恢复，在一定程度上抑制了阵列失效带来的旁瓣增长。仿真结果表明该方法是可行、有效的。
关键词:
信号重构,
阵列失效校准,
波束形成
Abstract: Failed elements can seriously degrade the performance of an array and a method for array failure correction based on signal-reconstruction is presented. The received signals at neighbouring elements differ only by a constant phase coefficient in an ideal equispaced linear array, so the distorted output of the failed elements can be reconstructed by synthesizing the output signals of neighbouring elements and the degraded sidelobe level can be partially compensated. The method is proved to be effective with the simulation.
Key words:
signal-reconstruction,
array failure correction,
beamforming
中图分类号:
徐朝阳;章新华;康春玉. 基于信号重构的阵列失效校准方法[J]. 计算机工程, 2009, 35(1): 255-256.
XU Zhao-yang; ZHANG Xin-hua; KANG Chun-yu. Array Failure Correction Method Based on Signal-reconstruction[J]. Computer Engineering, 2009, 35(1): 255-256.