Supercharge Your Innovation With Domain-Expert AI Agents!

Anti-fading wireless digital broadcasting signal transmission method

A digital broadcasting and signal transmission technology, applied in digital transmission systems, transmission systems, electrical components, etc., can solve problems such as signal distortion, sub-channel orthogonality destruction, signal spectrum changes, etc., and achieve a small amount of information and easy processing and recovery Effect

Inactive Publication Date: 2014-05-07
NINGBO UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The high peak-to-average power ratio (PAPR) of OFDM signals has high requirements on the linear range of amplifiers and digital-to-analog converters. If the linear range of the system cannot meet the signal changes, it will cause signal distortion and signal spectrum changes. , resulting in the destruction of the orthogonality between the sub-channels, resulting in mutual interference and deteriorating system performance

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
  • Anti-fading wireless digital broadcasting signal transmission method
  • Anti-fading wireless digital broadcasting signal transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] A schematic diagram of an embodiment of signal transmission between a certain transmitter and a receiver according to the anti-fading wireless digital broadcast signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0034] 1) The certain anti-fading wireless digital broadcast signal transmitter converts the multimedia data stream into a bit stream through a media data processor, and uses the scrambling code sequence generated by the feedback shift register to perform scrambling processing to form an input data bit stream;

[0035] 2) The certain anti-fading wireless digital broadcasting signal transmitter forms FFT concatenated interleaving coded modulation in the frequency domain after its input data bit stream undergoes RS coding, convolutional interleaving, LDPC coding, sy...

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 anti-fading wireless digital broadcasting signal transmission method which is a time domain and frequency domain mixed type framing modulation scheme. According to the training sequence optimization design, signal generation mode and signal selection method of the anti-fading wireless digital broadcasting signal transmission method of the invention, original signals of OFDM signals can be easily processed, recovered and obtained at the receiver side, so advantages, such as low peak-to-average power ratio, short synchronization time, good channel anti-fading performance, multi-service controllability etc., can be realized.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more specifically relates to an anti-fading wireless digital broadcast signal transmission method. Background technique [0002] At present, television broadcasting has gradually developed from analog to digital. Digital TV anti-fading wireless digital broadcast transmission system, as an important part of digital TV anti-fading wireless digital broadcasting, the development of its related technologies is closely related to people's quality of life, and therefore has received extensive attention. Digital TV anti-fading wireless digital broadcasting related technologies and related industries are industries with rapid development and good market prospects in the field of communication and computer. In terms of digital TV anti-fading wireless digital broadcasting technologies, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile solutions for digital...

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): H04L27/26H04L1/00
Inventor 郑紫微刘哲何晨晖熊欧吴明昊潘洋
Owner NINGBO UNIV
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