摘要
针对工程应用中超分辨算法存在的计算量大、分辨信噪比门限高以及对阵列误差敏感等问题,研究了将常规波束形成和超分辨相结合的方法,给出了波束空间MUISC算法,并通过计算机仿真,比较了波束空间和阵元空间超分辨算法的统计性能,分析和验证了波束空间波束数目的选择对估计性能的影响。结果表明,波束空间的超分辨算法计算量小,并具有较强的分辨力和较低的信噪比门限。
Aiming at the problems of the high resolution methods in practice, such as large computation, poor resolution in low snr and sensitivity in the case of modeling errors, the algorithm of combining normal beam-form and high resolution methods is researched. The beam-space MUSIC algorithm is introduced and the statistical analysis by computer simulations is given. The relation between beams and the threshold for estimating the direction are aanlysed and proved. The simulation results show that the beam-space algorithm has good performance, such as low computation and high resolution in low snr.
出处
《电子信息对抗技术》
2006年第6期11-14,19,共5页
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