【摘要】 在分析了单一来波多径簇与单一来波信号所产生的阵列输出自相关矩阵之间差别的基础上,通过引入平均误差角度及误差角度均方根扩展,讨论了单一多径簇来波方向估计结果与其中心角度之间的差异.通过数值计算,具体分析了多径簇的入射中心角、角域分布范围等因素对来波方向估计结果的影响.更多还原

【Abstract】 The estimation of Direction-of-Arrival(DOA) of a cluster of incident multipath signals is discussed,where the signals are treated as a single one by the array to present a visual direction.The differences between the auto-correlation matrixes of the array output in various cases are compared to reduce the main factors which make the visual direction departing from the central direction of the actual cluster.With definitions of the main error angle and the RMS error angle spread between the visual and central directions of the multipath cluster,the estimation results are numerically evaluated and compared.The different impacts on the estimation of DOA are concluded.更多还原