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

Low false alarm and low false dismissal burst signal capturing method

A burst signal, low false alarm technology, applied in the field of satellite burst communication, can solve the problems of increased probability of miscapture and frame loss, limited capture signal range, and unsatisfactory, so as to improve stability and reliability, reduce The effect of working signal-to-noise ratio threshold and reducing the probability of missed detection

Active Publication Date: 2010-03-10
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple, but the range of captured signals is limited and cannot meet the 10dB dynamic range we require, and the number of symbols used for signal energy calculation is relatively large, which is more suitable for continuous signal capture
The second is dynamic capture threshold: the threshold value for judging signal arrival is dynamic and automatically adjusted according to the strength of the signal. The probability of false capture and frame loss increases when the noise ratio is high, which is not suitable for burst signal capture

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
  • Low false alarm and low false dismissal burst signal capturing method
  • Low false alarm and low false dismissal burst signal capturing method
  • Low false alarm and low false dismissal burst signal capturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 , figure 1 It is an electrical principle block diagram of an embodiment of the present invention, including a burst detection module 1, a timing recovery module 2, a carrier recovery module 3, and a unique code detection module 4, and the embodiment is according to figure 1 Connect the lines. The present invention adopts the preamble sequence of the burst signal of the burst satellite communication system and the unique code in MF-TDMA communication, adopts the preamble sequence of the burst signal and the unique code detection technology, and detects the preamble sequence of the burst signal, restores timing, Carrier recovery and unique code detection enable burst signal capture with low false alarm and low missed detection.

[0016] The present invention comprises steps as follows:

[0017] ① Input the baseband signal of the matched filter into the burst detection module 1, and the burst detection module 1 uses a correlation detection algorithm to...

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 low false alarm and low false dismissal burst signal capturing method, relating to the capture of burst signals in the satellite burst communication field. The low false alarm and low false dismissal burst signal capturing method comprises the following steps: adopting a leader sequence of a burst signal of a satellite burst communication system and unique words in MF-TDMA communication and realizing the false alarm and low false dismissal capture of the burst signal through detection of the leader sequence of the burst signal, timing recovery, carrier recovery and unique word detection. The low false alarm and low false dismissal burst signal capturing method still has the advantages of enhancing the stability of the MF-TDMA satellite communication system, reducing the working signal-to-noise threshold of the MF-TDMA satellite communication system and the like, and is especially suitable for capturing burst signals of the MF-TDMA satellite communication system.

Description

technical field [0001] The invention relates to a method for capturing burst signals with low false alarm and low missed detection in the field of satellite burst communication, and is especially suitable for MF-TDMA satellite communication systems, and can also be used for burst signal capture in other burst communication systems . Background technique [0002] There are several methods for signal capture in burst communication: one is to fix the capture threshold: calculate the energy value of the signal, and consider the signal to arrive when it exceeds the set threshold. This method is simple, but the range of capturing signals is limited and cannot meet the 10dB dynamic range we require, and the number of symbols used for signal energy calculation is relatively large, which is more suitable for capturing continuous signals. The second is dynamic capture threshold: the threshold value for judging signal arrival is dynamic and automatically adjusted according to the stre...

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): H04B7/26H04W84/06
Inventor 郝学坤李辉王利军刘冀岳田张鹏宗陈艳丽张江伟
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Features
  • Generate Ideas
  • 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