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

Single-frequency radar imaging method for spinning target

A radar imaging and target technology, which is applied in the direction of using re-radiation, reflection/re-radiation of radio waves, measurement devices, etc., to achieve strong practical value and solve imaging problems.

Active Publication Date: 2016-02-24
BEIJING INST OF ENVIRONMENTAL FEATURES
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a single-frequency radar imaging method for spinning targets, which can not only solve the imaging problem of wide-angle continuous wave radar echoes, but also solve the imaging problem of spinning targets well. It has strong practical value in the detection and identification of

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
  • Single-frequency radar imaging method for spinning target
  • Single-frequency radar imaging method for spinning target
  • Single-frequency radar imaging method for spinning target

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage.

[0039] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the specific embodiments described and shown in detail herein, and that it is possible for those skilled in the art to do so without departing from the scope defined by the claims. Personnel may make various changes to the exemplary embodiments described.

[0040] Aiming at the problem that imaging algorithms such as range Doppler and filtered back projection cannot be used for the radar echo of the continuous wave radar echo and the radar echo of the single-frequency spinning target, the invention provides a single-frequency radar ...

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 single-frequency radar imaging method for a spinning target. The method comprises steps as follows: obtained radar echoes of a target in all azimuth angles are divided into N sub-apertures, and Fourier transform is performed on the radar echoes in each sub-aperture, so that lateral distribution of scattering intensity in each sub-aperture is obtained; RADON inverse transformation is performed on the lateral distribution of the scattering intensity in the N obtained sub-apertures, and a first image of the target is rebuilt; a second image of the target is rebuilt with the CLEAN algorithm according to the rebuilt first image of the target. According to the method, the imaging problem of wide-angle continuous wave radar echoes can be solved, and the imaging problem of the spinning target can also be well solved. The method has the higher practical value in detection and identification of the radar target.

Description

technical field [0001] The invention relates to the field of radar target imaging, in particular to a single-frequency radar imaging method for spinning targets. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] In two-dimensional radar imaging, imaging algorithms such as range Doppler and filtered back projection are usually used to complete the reconstruction of the two-dimensional image of the target. However, imaging algorithms such as range Doppler and filtered inverse projection not only require the azimuth direction of the radar echo to contain certain synthetic aperture angle data, but also require the range direction of the radar echo to contain data of a certain bandwidth. However, sometimes the collected radar echo data does not meet the above requirements, such as continuous wave radar echo data and ...

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): G01S13/89
CPCG01S13/89
Inventor 李胜闫华崔闪
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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