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

Method for estimating physical dimension of conical target of broadband composite bistatic radar

A bistatic radar, physical size technology, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measurement devices, etc.

Active Publication Date: 2016-04-06
NAT UNIV OF DEFENSE TECH
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obtaining target structural features, especially physical size, through 1D range images, 2D ISAR and 3D ISAR usually requires the knowledge of the micro-motion characteristics of the target, such as precession angular velocity, precession angle, etc., but the estimation of these parameters usually requires Knowing the structural features of the target, this constitutes a circular puzzle

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
  • Method for estimating physical dimension of conical target of broadband composite bistatic radar
  • Method for estimating physical dimension of conical target of broadband composite bistatic radar
  • Method for estimating physical dimension of conical target of broadband composite bistatic radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] figure 1 Is the overall flow chart of the present invention. In order to better understand the technical solutions of the present invention, the implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0055] Step 1: Establish bistatic observation model of cone target

[0056] Such as figure 2 As shown, the monostatic radar T / R station is located at T x , the bistatic receiving station R is located at R x , the height and base radius of the rotationally symmetrical cone target are h and l respectively, and its backscattering characteristics are mainly contributed by three scattering centers (A, B, C), where B and C are the line of sight of the T / R station and the target axis The intersection point of the plane and the edge of the cone base, and the bistatic scattering characteristics of the cone target are mainly contributed by three scattering centers (A, D, E), D, E are the plane and the conica...

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 method for estimating the physical dimension of a conical target of a broadband composite bistatic radar, and the method comprises seven steps: 1, building a composite bistatic radar observation model; 2, obtaining a monostatic / bistatic radar one-dimensional ranging image; 3, extracting the position of the scattering center of a monostatic / bistatic radar; 4, solving an intermediate variable through employing a target symmetrical structure; 5, estimating a bistatic angle through employing tracking data; 6, carrying out the combined solving of the height of a cone and the bottom radius; 7, carrying out continuous observation and solving a mean value. The method can directly obtain the physical dimension of an object, is not affected by the attitude of the object, is stable in characteristics, is simple and practical, and facilitates the quick extraction of the features of a slightly moving target.

Description

Technical field: [0001] The invention relates to a method for estimating the physical size of a wideband compound bistatic radar cone target. The physical size (height and bottom surface radius) of the cone target is obtained based on electromagnetic scattering theory and a parameter estimation method. The invention belongs to the technical field of radar target characteristics. Background technique: [0002] Composite bistatic radar refers to adding a receiving station to the existing monostatic radar to form a radar system with simultaneous observation of two viewing angles, that is, T / R-R bistatic radar. The cost of a passive receiver is much lower than that of a complete radar, and the benefits obtained are great. The passive receiver itself has potential advantages such as anti-stealth and anti-jamming, and through the information fusion of two viewing angles, it can obtain More abundant and stable target information, thereby improving the target recognition ability of...

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): G01S7/41G01S13/90
CPCG01S7/41G01S13/90G01S13/9064G01S13/9058
Inventor 艾小锋冯德军赵锋刘进杨建华李永祯肖顺平
Owner NAT UNIV OF DEFENSE TECH
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