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研究定位中的超宽带(Ultra Wide-band,简称UWB)信号时延估计问题,给出UWB信号的模型,在研究传统的相关法、双谱法及MUSIC算法的基础上,提出一种改进的MUSIC算法。通过仿真实验,给出估计性能曲线,和传统的相关法、双谱法及MUSIC算法相比,仿真结果表明改进的MUSIC算法具有更好的估计性能。
In this paper, we study the UWB (UWB) signal delay estimation problem in positioning and give the model of UWB signal. Based on the study of the traditional correlation method, bispectrum method and MUSIC algorithm, we propose an improved MUSIC algorithm. Compared with the traditional correlation method, bispectrum method and MUSIC algorithm, the simulation results show that the improved MUSIC algorithm has better estimation performance.