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

A False Point Removal Method for Multi-target Passive Localization and Tracking

A technology of passive positioning and false points, applied in positioning, radio wave measurement systems, measuring devices, etc., can solve problems such as false tracks, reduce the amount of data processing calculations, reduce the probability of false tracks, engineering highly achievable effect

Active Publication Date: 2018-01-16
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this situation is not effectively eliminated, a large number of false tracks will be generated in the process of passive positioning and tracking calculation

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
  • A False Point Removal Method for Multi-target Passive Localization and Tracking
  • A False Point Removal Method for Multi-target Passive Localization and Tracking
  • A False Point Removal Method for Multi-target Passive Localization and Tracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The method for removing false points generated in the process of multi-target passive positioning and tracking solution proposed by the present invention mainly includes two processes of removing false points by using multiple thresholds and removing false points by using the nearest neighbor data association method. At the same time, the amount of communication and calculation between platforms is reduced, and the number of platforms used for passive positioning calculation is three, such as Figure 5 As shown, this embodiment includes the following steps:

[0033] The first step is to use the direction finding cross-location principle to calculate the traces obtained by the two platforms with the farthest distance to find all possible target traces.

[0034] Such as figure 1 shown. Direction-finding cross-location is the use of multiple observation stations to intersect the direction-finding line of the observation station in space to determine the position of the t...

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 false point removal method for multi-target passive location and tracking. The method comprises following steps: S1. calculating point trace obtained by two platforms by use of the principle of direction-finding cross location to obtain all possible target point traces; S2. calculating the distance between all the possible target point traces and the angle measuring lines of three platforms and selecting the possible point trances, the distance between which and the angle measuring lines of three platforms is less than a threshold, as possible true point traces; S3. performing summation to the distance between the possible true point traces and the angle measuring lines of the three platforms, and performing ranking to the distance summation, and selecting n point traces having the minimum distance summation according to possible target number n as true target measuring point traces; S4. associating the true target measuring point traces with a central flight path by use of the nearest neighbor data association method and performing starting and deleting to the flight path. According to the method, multi-threshold technique is used to delete most false points and therefore data processing calculated quantity of the follow-up data association is reduced.

Description

technical field [0001] The invention relates to the integrated field of airborne avionics, and belongs to the multi-platform sensor information fusion collaborative detection technology. It mainly proposes the combination of multiple thresholds and track correlation to carry out multi-target passive positioning and tracking, and is suitable for multi-machine or multi-platform Removal of false points in the process of cooperative multi-target passive localization and tracking. Background technique [0002] The method of using active equipment such as radar, laser, and sonar to locate the target is called active positioning, which has the advantages of all-weather and high precision. However, the active positioning system relies on transmitting high-power signals, so it is easy to expose itself, thus being attacked by soft-killing electronic interference and hard-killing weapons such as anti-radiation missiles (ARM), which greatly affects the positioning accuracy. Even affect...

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 Patents(China)
IPC IPC(8): G01S5/00
CPCG01S5/00
Inventor 刘博
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com