摘要： 多径信号延迟估计与多径干扰抑制技术一直是卫星导航领域的一个研究热点。在分析近距离镜面多径信号时间延迟特性的基础上，提出一种基于无迹粒子滤波的多路径信号延迟估计方法。给出标准的粒子滤波算法模型，讨论无迹粒子滤波算法在多路径信号延迟估计中的应用，描述算法的推导过程。计算机模拟结果验证了该算法的有效性。
关键词:
全球定位系统,
多路径信号,
无迹粒子滤波,
延迟估计
Abstract: Multipath signal delay estimation and interference mitigation in satellite navigation are research hotspots. According to the multipath signal nature of close specular reflection, an estimation algorithm based on UPF for the delay time of multipath is investigated. The standard particle filtering algorithm is presented, and the application of the Unscented Particle Filtering(UPF) algorithm in the estimation of the delay time of multipath is primarily discussed, and the algorithm is deduced in detail. Simulation results verify the effectiveness of this algorithm.
Key words:
Global Position System(GPS),
multipath signal,
Unscented Particle Filtering(UPF),
time delay estimation
中图分类号:
连远锋, 赵剡, 吴发林, 褚衍龙. UPF在GPS多路径信号延迟估计中的应用[J]. 计算机工程, 2011, 37(2): 10-12.
LIAN Yuan-Feng, DIAO Shan, TUN Fa-Lin, CHU Yan-Long. Application of Unscented Particle Filtering for Time Delay Estimation of GPS Multipath Signal[J]. Computer Engineering, 2011, 37(2): 10-12.