摘要
分析了基于来波到达时间(TOA)的定位技术中存在的问题,把时域超分辨率最小范数(Min-Norm)谱估计算法引入到频域TOA估计领域,提出了互相关Min-Norm超分辨率TOA算法,利用互相关技术理论上可消除非相关噪声对算法的影响。仿真结果表明,该算法具有超分辨率特性及强抗噪性,可在小带宽、强噪声背景下获得稳定、准确的时延估计结果,适于在多径效应严重的环境中应用。
The location technology based on TOA （time of arrival） was analyzed, and the Min-Norm super-resolution spectral estimation algorithm in time-domain was introduced to the field of TOA estimation in frequency-domain. A cross-correlation based on Min-Norm super-resolution TOA algorithm was proposed. The algorithm can completely eliminate irrelevant noises in theory. The simulation results show that it is super-resolution and robust to noises and can achieve precise TOA estimation with a narrow bandwidth in noisy backgrounds.
出处
《电波科学学报》
EI
CSCD
北大核心
2006年第5期771-776,共6页
Chinese Journal of Radio Science
基金
山东省优秀中青年科学家科研奖励基金(02BS011)
