Global target tracking method in navigation radar system

A global target, navigation radar technology, applied in radio wave measurement systems, radio wave reflection/re-radiation, utilization of re-radiation and other directions, can solve the problems of complexity, increased calculation amount, large amount of calculation, etc., to improve tracking performance , High processing efficiency, good tracking and monitoring effect

Active Publication Date: 2018-09-04
中船鹏力(南京)大气海洋信息系统有限公司 +1
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, tracking the targets in the entire scanning area requires a large amount of calculation. Considering that the subsequent algorithm improvement will also increase the complexity and calculation amount, it is necessary to design an effi

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
  • Global target tracking method in navigation radar system
  • Global target tracking method in navigation radar system
  • Global target tracking method in navigation radar system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0032] Such as figure 1 As shown, a method for global target tracking in a navigation radar system includes the following steps.

[0033] Step 1, divide the topological grid: divide the topological grid for the entire radar scanning range according to the following two division criteria.

[0034] Division criteria 1. The size of each topological grid should be as small as possible so that the amount of computation can be fully shared.

[0035] Classification criteria two, such as Figure 4 As shown in , the association range of a single track in a single scanning period should be constrained within the topological grid where it is located and the 8 adjacent topological grids.

[0036] Each topological lattice after division is as follows figure 2 The fan-shaped structure shown has the same distance spread and the same a...

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 discloses a global target tracking method in a navigation radar system. The method comprises the following steps of dividing a topology grid; abstracting the tracking process of a radartarget to be a task; establishing a thread pool; establishing a sector driving mechanism; carrying out point trace filling; carrying out sector crossing judgment; if a sector is not crossed, repeatedly executing point trace filling; if the sector is crossed, according to the driving mechanism, starting track updating, track establishment and data cleaning in each grid in the corresponding sector;and repeatedly carrying out point trace filling and sector crossing judgment, and realizing global target tracking. In the invention, the continuous starting and tracking of a global target in the navigation radar system can be realized; during a tracking process, association particularity between a track and point trace data is integrally considered, which means that a grid crossing association condition exists; optimal association processing of all targets in an entire radar scanning range is guaranteed to be realized; and under the condition of realizing high processing efficiency, a wholeframe can effectively improve the tracking performance of a radar to low-speed dense targets.

Description

technical field [0001] The invention relates to the technical field of radar target tracking, in particular to a method for global target tracking in a navigation radar system. Background technique [0002] In the VTS system (Vessel Traffic Management System), the navigation radar is used to track the surface target and continuously provide the system with target dynamic information. [0003] Track point-track correlation is an important part of radar target tracking. The correlation results are used for filtering processing. The accuracy of the correlation results directly affects the accuracy of the filtering results, and ultimately affects the accuracy of the heading and speed. Due to the characteristics of radar echoes, the parameters such as the time, location, and size of the point track are uncertain, and they usually shake around the predetermined position, so the process of linking the track to the point track has great ambiguity. In inland waters, ships are dense ...

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): G01S13/72G01S7/41
CPCG01S7/41G01S13/72
Inventor 张金松张灿周晓安沈树茂刘洋
Owner 中船鹏力(南京)大气海洋信息系统有限公司
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