基于信号相位匹配原理的目标方位估计的近场修正方法  

Accurate Near-Field Signal Direction-of-Arrival Estimation Based on Signal Phase Match Algorithm

作　　者：严光洪[1] 陈志菲[1] 孙进才[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《兵工学报》2009年第5期648-651,共4页Acta Armamentarii

基　　金：国家自然科学基金资助项目(60672136)

摘　　要：分析了信号相位匹配(SPM)原理近场目标方位(DOA)估计精度低的原因,提出了基于信号相位匹配原理的近场目标高精度方位估计方法。仿真计算结果表明该方法具有指向性尖锐、高分辨、定向精度高和计算简单等特点。水池和外场试验进一步验证了该方法的正确性,该方法有效提高了近场目标信号波达方向估计精度。The reason, why precision of the near-field signal direction-of-arrival （DOA） estimation is lower, was analyzed based on signal phase match （SPM） principle, the method of accurate near-field signal DOA estimation was proposed based on the principle. The simulated results show that the method has sharp directionality, high resolution and directional precision, and simple calculation. Correctness of the method was verified by the anechoic pool and field tests. The method can improve the precision of near-field signal DOA estimation effectively.

关 键 词：信息处理技术 方位估计 近场 信号相位匹配原理 

分 类 号：TN911.7[电子电信—通信与信息系统]