Unlock instant, AI-driven research and patent intelligence for your innovation.

Locating method based on locating position residual error weighting

A technology of positioning position and positioning method, which is applied in the field of wireless positioning, can solve the problems affecting and aggravating the accuracy of traditional positioning algorithms, and achieve the effect of high positioning accuracy

Active Publication Date: 2016-11-16
ZHEJIANG UNIV OF TECH
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the field measurement of GSM network by Motorola and Ericsson, it is found that the NLOS error tends to increase with the increase of the straight-line distance between the mobile station (MS, mobile station) and the base station or base station (BS, base station), which is more Exacerbated the impact on the accuracy of traditional positioning algorithms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Locating method based on locating position residual error weighting
  • Locating method based on locating position residual error weighting
  • Locating method based on locating position residual error weighting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings. The comparison methods used in the simulation diagram are shown in Table 1:

[0029] algorithm

describe

posW(EXP(-Res))

Residual Weighted Localization Method Using Negative Exponential Weighting

posW(1 / Res 5 )

The method of the invention

posW(1 / Res)

Residual Weighted Localization Method Using Reciprocal Weighting

CLS

constrained least squares method

wxya

Classical Residual Weighting Method

[0030] Table 1

[0031] The RWGH method in Table 1 comes from Document 1: Chen P C, A non-line-of-sight errormitigation algorithm in location estimation[A], Proc.IEEE Wireless Communications and Networking Conference WCNC'99[C], New Orleans,1999:316 -320, that is, Chen P C, a non-line-of-sight error elimination algorithm in position estimation [A], Proceedings of the 1999 IEEE International Conference on Wire...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a locating method based on locating position residual error weighting. Firstly base stations are grouped, two base stations form a group, the number of the groups is C<2><N> and the number of the base stations is N; then the coordinate value of MS is estimated by using different locating modes, the MS position estimation (the intermediate locating result) of the BS group is determined and then the distance from the estimation coordinate value to the intermediate locating result is calculated so that the locating position residual error of each group is obtained; then weighting factors are calculated by a residual error reciprocal pentabasic function according to the size of the locating position residual error; and finally the corresponding weighting factors and the intermediate locating result are multiplied and summated, and the output result is the final MS position estimation. According to the locating method based on side length residual error weighting, the error is effectively reduced and the locating precision is enhanced.

Description

technical field [0001] The present invention relates to the technical field of wireless positioning, in particular to a residual weighted positioning method in an NLOS transmission environment, using a base station grouping strategy, each group calculates intermediate positioning results and weighting factors, and finally performs weighted summation on these intermediate positioning results, Realize MS positioning. Background technique [0002] Wireless positioning refers to a technology that uses parameters such as angle and distance included in the received signal to estimate the position of the mobile terminal. In recent years, due to economic development and the needs of people's lives, this technology has been widely used. It can provide services including emergency calls, travel information services, vehicle management, etc., and has also been applied to charging based on location information Systems and intelligent transportation systems are an important part of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/06H04W64/00
CPCG01S5/06H04W64/00H04W64/003
Inventor 华惊宇李溯南李枫徐志江卢为党
Owner ZHEJIANG UNIV OF TECH