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

Transmitting and receiving robust design method used for extended target detection

A technology with extended goals and robust design, applied in computing, special data processing applications, radio wave measurement systems, etc., to achieve the effect of improving detection performance and enhancing adaptability

Active Publication Date: 2018-03-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of extended target detection under the interference environment of strongly irrelevant target echoes, the present invention proposes a robust design method for transmission and reception against uncertain interference information, so as to improve the detection capability of radar in the worst case

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
  • Transmitting and receiving robust design method used for extended target detection
  • Transmitting and receiving robust design method used for extended target detection
  • Transmitting and receiving robust design method used for extended target detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] combined with figure 1 , the specific implementation steps of the present invention are described as follows:

[0051] 1 Signal model and objective function derivation

[0052] Aiming at the problem of extended target detection in the environment of signal-related interference, considering the sequence s transmitted by the monostatic radar with length N, the received signal model is constructed as follows:

[0053] y=α t h*s+α c c*s+n (0.1)

[0054] where h=[h 1 ,..., h P ] T is the energy normalized target impulse response (TIR), c = [c 1 ,...,c Q ] T is the energy-normalized irrelevant target echo-interference impulse response (IIR), that is, and P and Q are the number of distance units spanned by the target and interference respectively; and are the power of the target and the interference respectively, if n is the variance of The white noise sequence, then the signal-to-noise ratio Drying ratio * indicates convolution operation. Let M=P+N-1, ...

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 transmitting and receiving robust design method used for extended target detection. An interference form of an unrelated target echo is constructed; interference informationis assumed to be uncertain; and a radar transmitting and receiving robust design method for resisting uncertain interference is proposed, so that the adaptability of a system to a complicated environment is enhanced and the detection performance of a radar under strong unrelated target echo interference is improved; an efficient sequence iterative optimization algorithm is proposed; two max-min robust problems for solving s and w respectively are involved in each iterative step; based on a calculation property of a consistent matrix norm, the uncertainty of the robust problems can be analyzed;the robust problem is converted into a conventional maximization problem; efficient solving is performed by virtue of MVDR and Dinkelbach methods; a quick and remarkable optimization effect can be achieved; and real-time adaptive robust design becomes possible.

Description

technical field [0001] The invention is used for the robust design method of transmitting and receiving for extended target detection Background technique [0002] In a broadband radar system, if the physical size L of the target makes c / 2L equal to the radar bandwidth B, the target echo is no longer a single-frequency signal with only delay and Doppler frequency shift, but contains different frequency The response can be regarded as the superposition of multiple continuous point target echoes in a certain extended area, so this type of target is called an extended target. Generally, it is considered that the target echo is obtained from the transmitted signal through a causal impulse response h(t), and becomes the target Impulse Response (TIR). [0003] In the extended target detection under the signal-related interference environment, the optimal design of the transmit sequence and the receive filter is adaptively carried out by using the known TIR and environmental infor...

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): G06F17/50G01S7/36
Inventor 崔国龙付月孙智陈璐杨婧易伟张天贤孔令讲杨晓波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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