基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法

米洪; 杨习贝

doi:10.13568/j.cnki.651094.2018.03.013

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基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法

信息科学与技术 | 更新时间：2026-01-21

- 基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法
- 基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法
- 新疆大学学报（自然科学版中英文） 2018年35卷第3期页码：333-339
- 作者机构：
  
  1. 南京交通职业技术学院电子信息工程学院
  2. 江苏科技大学计算机科学与工程学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61572242)
- DOI：10.13568/j.cnki.651094.2018.03.013
  中图分类号： TN929.5;TP212.9
- 纸质出版：2018
- 稿件说明：
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[1]米洪,杨习贝.基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法[J],2018,35(03):333-339.
[1]米洪,杨习贝.基于正交矩阵与联合独立滤波机制的无线传感网络信号定位算法[J],2018,35(03):333-339. DOI： 10.13568/j.cnki.651094.2018.03.013.

DOI：10.13568/j.cnki.651094.2018.03.013.

摘要

为解决当前无线传感网信号定位算法易受瑞利噪声影响

且其采用的半径扫描旋转定位机制在高衰落信道条件下难以消除定位角度误差

导致定位精度较低的缺陷

本文研究了鉴于正交矩阵联合单一滤波制度的无线传感网信息定位方案:首先

通过基准节点以及有关接收节点的位置关系

构建正交矩阵定位结构

用来接收待测节点发送的信号

并根据接受节点与待测节点的角度

对获取的待测节点子信号进行初步定位

减少接收节点定位待测节点的角度误差;随后

依据接收节点与待测节点的角度估计

构建联合独立滤波机制

采取功率谱密度函数计算定位过程中定位角度的平均估计

从而实现了对角度估计的优化

提高了信号定位精度.仿真实验表明:与JISA算法及NP-CPLA算法相比

本文算法具有较好的抗噪能力

其定位精度与效率更高

而定位误差更低.

Abstract

In order to solve the current wireless sensor network signal positioning algorithm vulnerable to noise and the radius scanning positioning and rotation of the difficult to eliminate the orientation angle error and precision improve mechanisms of space-time poor convergence performance etc. problem

an orthogonal matrix joint independent filtering mechanism of wireless sensor network signal positioning algorithm based on is proposed in this paper. First

according to the reference node and receiving node position in relation to the construction of orthogonal matrix positioning structure

receive detected nodes transmit signal and according to the received node and the measured angle of nodes is used to calculate the location of the preliminary

reduce the receiving node localization angle error of the node to be measured; subsequently

according to the receiving nodes and unknown nodes angle estimation construct joint independent filtering mechanism

positioning in the process of localization angle averaged numerical calculation

so as to realize the upgrading of angle estimation accuracy

improve the accurate degree of data. Simulation results show that the positioning data with the traditional JISA delivery

reduce the localization error

improve positioning accuracy.

关键词

Keywords

references

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