Active and passive radar cooperative anti-interference method based on waveform design

A waveform design and passive radar technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of high probability of false target misidentification, increased radar resource consumption, etc., and achieve the effect of improving anti-interference ability, suppressing interference, and reducing burden

Inactive Publication Date: 2015-01-07
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF5 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method deals with interference at the data processing level, which increases 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
  • Active and passive radar cooperative anti-interference method based on waveform design
  • Active and passive radar cooperative anti-interference method based on waveform design
  • Active and passive radar cooperative anti-interference method based on waveform design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The specific implementation of the present invention is described below by taking speed deception interference as an example, and the steps are as follows:

[0026] Step 1 Passive radar jamming detection

[0027] The active and passive radars work at the same time, the active radar continuously emits pulse signals, and both the active and passive radars continuously receive the radar echo signals and process the echo signals. Passive radar detects a specific area in real time. After receiving the radar echo reflected by the target, it uses the binary hypothesis detection theory to detect interference:

[0028] H 0 : x ( t ) = s ( t ...

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 provides an active and passive radar cooperative anti-interference method based on a waveform design, belongs to the technical field of radar anti-interference, and particularly relates to a radar waveform design technology. According to the active and passive radar cooperative anti-interference method, an active and passive radar cooperative work mode is adopted, interference is detected and identified through echo information detected by a passive radar in real time, relevant parameters of the interference are estimated, an active radar uses interference information provided by the passive radar to design the optimal transmission waveform and process the echo information, and therefore the active and passive radar cooperative anti-interference method has the advantages of being small in calculation amount and high in real-time performance, and improving anti-interference capacity of the radars in complex electromagnetic interference environments.

Description

technical field [0001] The invention belongs to the technical field of radar anti-jamming, and in particular relates to radar waveform design technology. Background technique [0002] Modern radars work in complex electromagnetic interference environments, and must have effective anti-interference capabilities to survive on the battlefield. With the development of radar jamming technology, especially the emergence of active deception jamming technology based on digital radio frequency memory (DRFM), it has brought great challenges to the accuracy of radar target detection and the stability of target tracking. Radar anti-jamming technology is facing with increasing difficulties. There are many types of radar active deception jamming, and a large jamming effect can be obtained with a low interference-to-signal ratio gain, which makes it difficult for the radar to detect and track the real target correctly, and seriously reduces the detection and tracking performance of the ra...

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): G01S7/36
CPCG01S7/36
Inventor 崔国龙吴健郝凯利于立岩孔令讲易伟杨晓波
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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