基于电控序列位移接收结构的无线网络信号定位算法

发布时间：2018-05-05 09:52

本文选题：G无线网络 + 信号定位　；参考：《计算机工程与设计》2017年11期

【摘要】：为解决当前5G无线网络中高速移动节点信号定位不准确和高稳定分布噪声(high stable distribution noise,HSDN)等特殊偏移噪声降低定位准确性的问题,提出基于电控旋转序列位移接收结构的5G无线网络信号定位算法。利用单一节点接收结构及环接收结构并采取分层方式,构建电控旋转序列位移接收结构;基于待定位信号与中央基站及各层接收节点之间的切线关系,初步估计待测信号方位;针对信号发射环境中的HSDN噪声频率漂移特性,通过信号定位差分机制,联合最优极大似然估计,构建基于差分方式的方位角精度优化机制,降低定位误差。仿真结果表明,与采取单一节点接收方式的GDAM算法及采取单层环接收方式的NUPOS-1算法相比,在HSDN噪声干扰环境下,该算法具有更低的信号定位误差。
[Abstract]:In order to solve the problems of inaccurate location of high-speed mobile node signal in 5G wireless network and high stable distributed noise, such as high stable distribution distribution HSDN, the location accuracy is reduced. A 5 G wireless network signal location algorithm based on electrically controlled rotation sequence displacement receiver structure is proposed. The single node receiving structure and the ring receiving structure are used to construct the electronic control rotation sequence displacement receiving structure, based on the tangent relation between the signal to be located and the central base station and the receiving nodes of each layer, the signal orientation is estimated preliminarily. Aiming at the characteristic of HSDN noise frequency drift in the environment of signal transmission, the azimuth precision optimization mechanism based on differential mode is constructed through signal location difference mechanism and combined optimal maximum likelihood estimation to reduce the positioning error. The simulation results show that compared with the single node receiving GDAM algorithm and the single layer ring receiving NUPOS-1 algorithm, the algorithm has lower signal localization error under the HSDN noise interference environment.
【作者单位】：长江大学工程技术学院;海南大学信息科学技术学院;
【基金】：国家自然科学基金项目(61162010) 海南省自然科学基金项目(614229) 海南省重点研发基金项目(ZDYF2016153) 长江大学工程技术学院基金项目(2016KY13)
【分类号】：TN929.5

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