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Anti-interference transmission method for wireless digital radio signals

A digital broadcasting and signal transmission technology, applied in the direction of multi-frequency code system, etc., to achieve the effect of small amount of information and easy processing and recovery

Inactive Publication Date: 2014-04-30
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the problem of high data rate controllable multi-service digital television anti-jamming wireless digital broadcasting, the present invention proposes an anti-jamming wireless digital broadcasting signal transmission method

Method used

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  • Anti-interference transmission method for wireless digital radio signals
  • Anti-interference transmission method for wireless digital radio signals

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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-jamming wireless digital broadcasting signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0034] 1) The certain anti-jamming 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-jamming wireless digital broadcasting signal transmitter forms an FFT bit-interleaved coded modulation data block in the frequency domain after undergoing multi-rate punctured convolutional coding, bit interleaving, and symb...

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Abstract

The invention discloses an anti-interference transmission method for wireless digital radio signals and relates to a framing modulation scheme for mixing a time domain and a frequency domain. The anti-interference transmission method for the wireless digital radio signals comprises the steps of training sequence optimization design, signal generation pattern selection and signal selection. In this way, original signals of OFDM signals can be easily obtained through processing and restoring at a receiver end. Besides, the anti-interference transmission method for the wireless digital radio signals has the advantages that the peak-to-average power ratio is low, synchronization time is short, channel fading is resisted, and multiple services can be controlled.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more specifically relates to an anti-jamming wireless digital broadcasting signal transmission method. Background technique [0002] At present, television broadcasting has gradually developed from analog to digital. Digital TV anti-jamming wireless digital broadcast transmission system, as an important part of digital TV anti-jamming 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-jamming 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 technologies related to digital TV anti-jamming wireless digital broadcasting, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
Inventor 郑紫微刘哲何晨晖熊欧吴明昊潘洋
Owner NINGBO UNIV
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