Microwave related imaging system and imaging method based on thinned array

A microwave correlation, sparse array technology, applied in the field of radar, can solve the problems of poor imaging effect and low resolution, and achieve the effect of less equipment usage, high resolution and strong penetration

Inactive Publication Date: 2013-08-07
XIDIAN UNIV
View PDF2 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, when there is no non-radial relative motion between the

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
  • Microwave related imaging system and imaging method based on thinned array
  • Microwave related imaging system and imaging method based on thinned array
  • Microwave related imaging system and imaging method based on thinned array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, rather than to limit the present invention.

[0034] refer to figure 1 , the microwave correlation imaging system based on the sparse array of the present invention includes a transmitting antenna 1, a target 2, a receiver 3 and a signal processor 5, wherein the transmitting antenna 1 is composed of a sparse array antenna, and each array element transmits a different microwave code The signals are incoherently superimposed in space to form a microwave radiation field, and the microwave radiation field irradiates the target 2 to generate the target scattering echo, and stores the corresponding microwave radiation field 4 on the surface of the target 2, the receiver 3 receives the target scattering echo, and the receiver 3 r...

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 microwave related imaging system and a microwave related imaging method based on a thinned array, which mainly aim to solve the problems of poor imaging effect and low resolution when non-radial relative movement does not exist between a radar antenna and a target in the prior art. The system comprises a transmitting antenna (1), a target (2), a receiver (3) and a signal processor (5), wherein the transmitting antenna (1) is formed by a thinned array antenna; different microwave coded signals are transmitted by all array elements, so as to form a microwave radiation field in space through incoherent superposition; the target (2) is irradiated through the microwave radiation field, so as to generate target scattering echoes; the microwave radiation field (4) on the surface of the target (2) is stored; the target scattering echoes are received by the receiver (3) through a single antenna and a single channel; and the target scattering echoes received by the receiver (3) and the pre-stored microwave radiation field (4) are processed by the signal processor (5), so as to obtain the imaging of the target. By using the system and the method, super-resolution imaging of the target without ambiguity can be realized when the non-radial relative movement does not exist between the radar antenna and the target, and the system and the method can be used for super-resolution imaging of the target by an airborne forward-looking radar and a ball-borne radar.

Description

technical field [0001] The invention belongs to the technical field of radar, relates to a microwave correlation imaging system and an imaging method, and can be used for sparse array antenna structure, signal collection and processing, and optimization algorithm application. technical background [0002] The scheme of using entangled photon pairs to realize quantum correlation imaging was first theoretically proposed by Soviet scholar David Nikolaevich Klyshko in 1988. Shi Yanhua, T.B.Pittman and others from the University of Maryland in the United States used the entangled photon pairs generated by the spontaneous parametric down-conversion SPDC process in 1995, combined with coincidence measurement technology, to realize a quantum correlation imaging and interference phenomenon. In 2004, the Lugiato group in Italy theoretically proposed that correlation imaging can also be realized by using ordinary classical thermal light sources. In 2005, Shi Yanhua's group completed t...

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): G01S7/41G01S13/89
Inventor 李军伊孟磊廖桂生董晓飞刘长赞邵自力
Owner XIDIAN UNIV
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