This paper presents a modified Root-MUSIC algorithm by which the signal DOA estimation performance can be improved when the snapshot number is limited. The operation principlesof this algorithm are described in detail...This paper presents a modified Root-MUSIC algorithm by which the signal DOA estimation performance can be improved when the snapshot number is limited. The operation principlesof this algorithm are described in detail. It is also pointed out theoretically that this is equivalentto have increased the snapshot number and can make the DOA estimation better. Finally, somesimulating results to verify the theoretical analyses are presented.展开更多
本文针对米波雷达低角测高环境的特点,充分利用数据协方差矩阵中的信息,基于空间平滑和传播算子的思想,提出了一种适用于米波雷达低角测高环境的快速算法(SSPM算法,Spatial Smoothing and Propagator Method)。该方法不需要去相干处理...本文针对米波雷达低角测高环境的特点,充分利用数据协方差矩阵中的信息,基于空间平滑和传播算子的思想,提出了一种适用于米波雷达低角测高环境的快速算法(SSPM算法,Spatial Smoothing and Propagator Method)。该方法不需要去相干处理和复杂的特征分解,可直接应用于存在多径干扰的米波雷达低角测高环境。仿真实验及实测数据处理结果均表明了该方法的有效性。展开更多
文摘This paper presents a modified Root-MUSIC algorithm by which the signal DOA estimation performance can be improved when the snapshot number is limited. The operation principlesof this algorithm are described in detail. It is also pointed out theoretically that this is equivalentto have increased the snapshot number and can make the DOA estimation better. Finally, somesimulating results to verify the theoretical analyses are presented.
文摘本文针对米波雷达低角测高环境的特点,充分利用数据协方差矩阵中的信息,基于空间平滑和传播算子的思想,提出了一种适用于米波雷达低角测高环境的快速算法(SSPM算法,Spatial Smoothing and Propagator Method)。该方法不需要去相干处理和复杂的特征分解,可直接应用于存在多径干扰的米波雷达低角测高环境。仿真实验及实测数据处理结果均表明了该方法的有效性。
