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

Infrared signal fast anti-shake filtering method

An infrared signal and infrared technology, which is applied in the identification of patterns in signals, radio wave measurement systems, radio wave reflection/reradiation, etc., can solve problems affecting signal integrity, accuracy, signal delay, etc., and achieve good results Clear pulse noise, short data delay, good signal debounce effect

Pending Publication Date: 2020-04-10
宁波展海电子科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, infrared signals are sensitive to noise or interference jitter, which will affect the integrity and accuracy of the signal. If too much filtering will cause signal delay,

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
  • Infrared signal fast anti-shake filtering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following description and drawings fully demonstrate the specific embodiments of the present invention so that those skilled in the art can practice them. Other implementations may include structural, logical, electrical, process, and other changes. The examples only represent possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments.

[0023] For a filter window with a length of L=2N+1, where N is a positive integer, set the sample points of the input signal sequence in the window at the nth time to x(nN),...,x(n),...,x (n+N), then the output of the fast anti-shake filtering algorithm is defined as:

[0024] y(n)=med[x(n-N),...,x(n),...,x(n+N)];

[0025] At present, the level system is 0, that is, no fast anti-shake filtering algorithm is used for filtering; 1: N=1, 3 poin...

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 a quick anti-shake filtering method for an infrared signal. The fast anti-shake filtering method has good characteristics on signal edge keeping, so that noise can be removed, the signal edge can be protected, and a good effect on signal recovery is achieved; the method has good edge preserving characteristics and impulse noise removing capability, has good effects in the aspects of processing the noise of infrared photoelectric return data and preserving information image characteristics, and is beneficial to ensuring the accuracy of target distance while accurately identifying a target; compared with the prior art, less CPU resources are occupied, less CPU operation time is occupied, data delay is short, and the signal jitter removing effect is good.

Description

Technical field [0001] The invention belongs to the technical field of infrared signal filtering, and particularly relates to an infrared signal fast anti-shake filtering method applied to a ship collision avoidance system. Background technique [0002] With the popularization of marine radar, the maturity and rapid development of information acquisition application technologies such as ultrasonic sounding sensors, optical sensors, and infrared photoelectric sensors, infrared photoelectric scanning has also been increasingly used. It has anti-interference, dynamic target locking, and proximity Distance scanning to avoid collision and other advantages. [0003] An infrared scanning collision avoidance system is installed on the marine radar to cooperate with the radar, sometimes completely replacing the radar signal to work alone, and sometimes cooperating with the radar for scanning data fusion. The infrared scanning collision avoidance system is parasitic on the marine radar, on ...

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): G06K9/00G01S13/86
CPCG01S13/86G06F2218/04
Inventor 罗中泽曹建明罗邦杰
Owner 宁波展海电子科技有限公司
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