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

Radiation source identification method based on radar signal fingerprint characteristics

A feature recognition and radiation source technology, applied to radio wave measurement systems, instruments, etc., to achieve the effect of improving accuracy and reliability

Pending Publication Date: 2019-01-15
NO 8511 RES INST OF CASIC
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a radiation source identification method based on the radar signal fingerprint feature, which solves the problem of how to apply the radar signal "fingerprint" feature to the radiation source identification

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
  • Radiation source identification method based on radar signal fingerprint characteristics
  • Radiation source identification method based on radar signal fingerprint characteristics
  • Radiation source identification method based on radar signal fingerprint characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] The invention adopts the rising edge of the pulse envelope in the pulse envelope parameters as the "fingerprint" of the radar signal. Since the rising time of the pulse envelope is very short, it is less interfered by the multipath effect. For any two waveforms, the more similar their shapes are, the higher the degree of correlation will be. In the present invention, it is determined by calculating the collected envelope rising edge data and the Hausdorff distance between the pre-stored "fingerprint" templates The degree of correlation, the smaller the Hausdorff distance, the more similar the two waveforms are, so from the point of view of probability and statistics, it can be considered that they match.

[0019] combine figure 1 and figure 2 , a radiation source identification method based on radar signal fingerprint features, the method steps are ...

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 an individual characteristic identification method based on pulse envelope rising edge characteristic search matching. According to the rising edge envelope characteristics ofa radar signal, the purpose of performing individual characteristic identification on a radiation source through a Hausdorff distance-based rising edge envelope matching method guided by intentional identification is achieved; spurious modulation due to random change of magnetron parameters of a radar transmitter can cause that envelopes of transmitted signals have difference; therefore, radar fingerprint characteristics are formed; but, multi-path and noise influence on the pulse envelope rising edge is relatively low; when being practically used, the method has relatively high reliability; therefore, the rising edge envelope information of the radar signal is used as the fingerprint of the radar signal; and, in combination with intentional identification guide, the matching success ratein practical application can be increased.

Description

technical field [0001] The invention belongs to the field of intrapulse unintentional modulation identification, in particular to a radiation source identification method based on radar signal fingerprint features. Background technique [0002] With the development of radar technology, it has become a hot issue in the field of electronic reconnaissance to use the "fingerprint" characteristics of radar signals to identify specific radiation sources. In the case of the same traditional signal parameters, through the identification of specific radiation sources, the unintentional modulation information of radiation sources can be used to complete the distinction and identification of radar radiation sources, and then carry out effective and long-term monitoring and tracking of specific radiation sources. [0003] Due to the subtle differences in the magnetrons of each radar emitter, there is a wealth of unintentional modulation information on its pulse envelope, so that even 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): G01S7/28
CPCG01S7/2813
Inventor 刘志武冀贞海王昀李文魁杨树树胡新宇徐学华侯文栋马琴宋海伟李贵显
Owner NO 8511 RES INST OF CASIC
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