一种改进的时空二维Capon法

Improvement of 2-D Temporal-Spatial Capon Method

针对时空二维Capon法在主瓣杂波区性能不足的问题,提出了一种改进的时空二维Capon法,该方法处理主瓣杂波区时在时空二维Capon法的基础上增加辅助通道,而处理非主瓣杂波区时不再增加辅助通道。理论分析和计算机仿真结果表明,该方法在运算量增加不大的情况下主瓣杂波区杂波抑制性能得到明显改善,且具有较强的容差能力。

A new improved 2-D temporal-spatial Capon method is proposed to deal with the problem of 2-D temporal-spatial Capon bad capabilities in mainlobes clutter area. Based on the 2-D temporal-spatial Capon, assistant filters are added to the new method in the mainlobes clutter area. Otherwise the new methodg disposal is similar to the 2-D temporal-spatial Capon. Theoretical analysis and computer simulation results have proved the excellent performance of the processor, particularly in the main lobe clutter area. This method has higher tolerant ability in the presence of random amplitude and phase errors existing in the array elements.