Unlock instant, AI-driven research and patent intelligence for your innovation.

A Constant False Alarm Detection Method for Moving Targets Based on Waveform Contrast Optimal Algorithm

A technology of constant false alarm detection and optimal algorithm, applied in the field of terahertz radar target detection, to achieve the effect of good motion compensation and excellent detection performance

Active Publication Date: 2020-10-09
NANJING UNIV OF INFORMATION SCI & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, these algorithms are not suitable for the fast-moving terahertz high-resolution fuze target detection problem, and the research on the fast-moving extended target detection is very necessary

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
  • A Constant False Alarm Detection Method for Moving Targets Based on Waveform Contrast Optimal Algorithm
  • A Constant False Alarm Detection Method for Moving Targets Based on Waveform Contrast Optimal Algorithm
  • A Constant False Alarm Detection Method for Moving Targets Based on Waveform Contrast Optimal Algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0031] refer to Figure 1-Figure 5 , a constant false alarm detection method for moving targets based on the waveform contrast optimal algorithm,

[0032] The key to terahertz fuze target detection is motion compensation, in which the estimation accuracy of motion parameters determines whether the High Resolution Range Profiles (HRRP) can be optimally focused. The waveform contrast function is defined as the ratio of the standard deviation of the waveform intensity to the average value, denoted as

[0033]

[0034] where Y represents the HRRP amplitude of the received echo signal, α is the estimated value of the phase error coefficient, rep...

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 moving target constant false alarm detection method based on a waveform contrast ratio optimal algorithm. The method comprises steps of allowing a waveform contrast ratio to become optimal according to an obtained echo signal high-resolution distance image by adjusting a compensation parameter to obtain a high-resolution distance image after movement compensation; giving a false alarm probability and acquiring a detection threshold; and according to the comparison of the high-resolution distance image after the compensation and the threshold, judging whether a target exists. Compared with the prior art, the method is characterized by capability of remarkably improving target detection performance of a Terahertz fuse.

Description

technical field [0001] The invention belongs to the technical field of terahertz radar target detection, and in particular relates to a constant false alarm detection method for moving targets based on an optimal algorithm of waveform contrast. Background technique [0002] The terahertz (THz) high-resolution fuze obtains extremely high resolution by emitting broadband waveform signals, thereby obtaining more target information. However, since the scattering center of the target diffuses into multiple range units, it also brings difficulties to the detection of the target while obtaining high resolution. Targets such as tanks and airplanes can no longer be considered as point targets at this time, but should be defined is an extended area target t composed of multiple scatterers in different radar range cells. Therefore, for the terahertz high-resolution radar system, the detection method of the conventional low-resolution radar point target can no longer be directly used f...

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 Patents(China)
IPC IPC(8): G01S13/89G01S13/04G01S7/41
CPCG01S7/41G01S13/04G01S13/89
Inventor 李家强李昭陈金立
Owner NANJING UNIV OF INFORMATION SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com