Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double platform simple angle maneuvering target interfusion and track method based on wavelet transformation

A technology of wavelet transform and maneuvering target, applied in the direction of radio wave reflection/re-radiation, radio wave measurement system, utilization of re-radiation, etc., can solve the problem of large amount of calculation, insufficient utilization, and unsatisfactory effect of speed and acceleration state estimation and other problems, to achieve the effect of small amount of calculation, reduction of calculation amount, and improvement of estimation accuracy

Inactive Publication Date: 2008-01-02
SHANGHAI JIAOTONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method effectively reduces the measurement noise, but because the one-step prediction of the target state is performed many times when calculating the average residual error, the calculation amount is large
In addition, this method only simply uses the sequence measurement data in data compression, and does not make full use of the relevant information (velocity information) in the sequence measurement data. Therefore, the equal-weight or variable-weight average measurement preprocessing method does not The estimated performance is not very good

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
  • Double platform simple angle maneuvering target interfusion and track method based on wavelet transformation
  • Double platform simple angle maneuvering target interfusion and track method based on wavelet transformation
  • Double platform simple angle maneuvering target interfusion and track method based on wavelet transformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to better understand the technical solution of the present invention, the implementation steps of the present invention will be further described below in conjunction with the examples.

[0028] In the embodiment, it is assumed that the target and the carrier aircraft move in a two-dimensional plane, and their movement conditions are shown in FIG. 3 . The carrier speed is 300m / s, and the centripetal acceleration is 30m / s with (10000, 10000) and (10000, 30000) as the center respectively 2 circular motion. The target movement is divided into three stages: the target flies from the starting point (30000, 15000) at a speed of 300m / s along the positive direction of the x-axis for 67s; then the target flies at 20m / s 2 The centripetal acceleration turns left to maneuver, and the maneuvering time is 47s; after the end of the maneuver, the target continues to move in a straight line at a speed of 300m / s until the end of 180s. The standard deviation of the target angle...

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 is a wavelet transformation based double platform pure angle mobile target fusion tracking method, using passive positioning method to position the target observed at different angles of observing platforms, to avoid nonlinear filtering under the tracking at pure angle and using wavelet transformation to make compression and characteristic extraction on the high-speed positioning data of the target, in the mode space, using interactive multimodel algorithm based on multispeed motion model to make motion estimation on the target, and using wavelet reverse transformation method for the estimated results and returning to the measuring space, thus obtaining the state estimation of the target. It provides a high-speed double platform angle-measured mobile target tracking method, has a little quantity of calculation and high filtering precision, able to be widely applied to robots, intelligent traffic, air traffic control, space flight, aviation, navigation and other fields.

Description

Technical field: [0001] The invention relates to a dual-platform pure-angle maneuvering target fusion tracking method based on wavelet transform, which is a target tracking method related to high-speed angle measurement in the field of fusion tracking, and can be used in civilian fields (robots, air traffic control and Intelligent transportation and other fields) and military fields (optical, acoustic pure angle maneuvering target tracking and other fields) are widely used. Background technique: [0002] Angle-only tracking is an important tracking method in the field of tracking. This method uses the angle information about the target obtained by the observation platform to estimate the state of the target. However, due to the inherent nonlinearity of single-station pure angle tracking, the incompleteness of measurement data and the multi-intersection of the maneuvering target's motion state, the tracking effect of pure angle tracking is not satisfactory. In order to impro...

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): G01S7/02G01S13/68G01S5/02
Inventor 敬忠良田宏伟胡士强
Owner SHANGHAI JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com