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Anti-interference wireless signal transmission method for digital broadcast

A wireless signal, digital broadcasting technology, applied in the direction of digital transmission system, transmission system, electrical components, etc., to achieve the effect of small amount of information, 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

[0013] Aiming at the high data rate controllable multi-service digital TV digital broadcasting wireless problem, the present invention proposes a digital broadcasting wireless signal anti-interference transmission method

Method used

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  • Anti-interference wireless signal transmission method for digital broadcast
  • Anti-interference wireless signal transmission method for digital broadcast

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Embodiment Construction

[0030] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] A schematic diagram of an embodiment of signal transmission between a certain transmitter and a receiver of the digital broadcast wireless signal anti-interference transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0032] 1) The digital broadcast wireless signal anti-interference transmitter converts the multimedia data stream into a bit stream through the 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;

[0033] 2) The certain digital broadcast wireless signal anti-jamming transmitter forms an FFT bit-interleaved coded modulation data block in the frequency domain after undergoing multi-rate punctured convolutional coding, bit interleaving, and symbol modulatio...

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Abstract

The invention discloses an anti-interference wireless signal transmission method for a digital broadcast, and relates to a mixed framing modulation scheme of the time domain and the frequency domain. According to the training sequence optimization design, the signal generating scheme and the signal selecting method of the anti-interference wireless signal transmission method for the digital broadcast, OFDM signals can be processed and recovered at a receiver end easily to obtain original signals of the OFDM signals. The anti-interference wireless signal transmission method for the digital broadcast has the advantages of being low in peak-to-average power ratio, short in synchronization time, resistant to channel fading, multiple in controllable service and the like.

Description

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

Claims

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Application Information

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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
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