Multi-satellite communication time difference positioning data fusion processing method

A technology of time difference positioning and data fusion, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., to reduce the number of platforms, solve the problem of incomplete noise awareness, and reduce difficulty and cost.

Active Publication Date: 2022-01-14
10TH RES INST OF CETC
View PDF23 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of accurate fusion of large noise point traces, the present invention provides a time difference positioning speed, high precision, strong anti-interference

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
  • Multi-satellite communication time difference positioning data fusion processing method
  • Multi-satellite communication time difference positioning data fusion processing method
  • Multi-satellite communication time difference positioning data fusion processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] refer to figure 1 . According to the present invention, after the multi-satellite communication radiation source time difference positioning data is obtained, the image point elimination module is used to classify all the positioning points according to the target number, and the mirror point elimination algorithm is used to eliminate the mirror image points in the positioning point classification results. For the mirror point in the positioning point, output the non-mirror point to the positioning point aggregation module, classify all normal points according to the target number, perform normal point aggregation on the normal point number classification result, and perform point trace aggregation based on the point trace aggregation algorithm, Use the estimated positioning error to fuse the position of the estimated target to generate aggregation points, and output the aggregation points to the outlier point elimination module. The outlier point elimination module per...

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

A multi-satellite communication time difference positioning data fusion processing method disclosed by the invention is high in time difference positioning speed and high in precision. According to the technical scheme, after multi-satellite communication radiation source time difference positioning data are obtained, all positioning points are classified according to target numbers through a mirror image point elimination module, mirror image points in a positioning point classification result are eliminated through a mirror image point elimination algorithm, and non-mirror image points are output to a positioning point aggregation module; a normal point aggregation module performs trace point aggregation according to a trace point aggregation algorithm to generate aggregation points, and outputs the aggregation points to an outlier point elimination module; the outlier point elimination module performs outlier point elimination according to an outlier elimination algorithm, and outputs non-outlier points to an aggregation point filtering module; and the aggregation point filtering module filters the aggregation point traces based on an aggregation point filtering algorithm, performs fusion processing by using a covariance intersection algorithm and a k-nearest neighbor sliding window least square algorithm, and generates a final fusion result.

Description

technical field [0001] The invention belongs to the target tracking technology in the technical field of target point-track fusion, and mainly relates to a point-track data fusion method in a maneuvering target real-time monitoring system, in particular to a fusion method of multi-satellite communication time-difference positioning data with large errors. Background technique [0002] With the development of multi-platform communication technology and the progress of time difference measurement technology, time difference measurement technology has become the main positioning method in modern positioning. In terms of the number of satellites, satellite positioning technology includes dual-satellite time difference and frequency difference joint positioning, three-star time difference single positioning, multi-satellite time difference single positioning and multi-satellite time difference and frequency difference joint positioning and so on. Double-star joint positioning nee...

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
IPC IPC(8): G01S19/42
CPCG01S19/423Y02D30/70
Inventor 王前东
Owner 10TH RES INST OF CETC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap