Anti-noise method for transmitting wireless digital broadcast signal

A technology for digital broadcasting and signal transmission, applied in digital transmission systems, transmission systems, shaping networks in transmitters/receivers, etc.

Inactive Publication Date: 2011-11-23
谢辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Aiming at the problem of high data rate controllable multi-service digital TV anti-noise wireless digital broadcasting, the present invention proposes an anti-noise wireless digital broadcasting signal transmission method

Method used

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  • Anti-noise method for transmitting wireless digital broadcast signal
  • Anti-noise method for transmitting wireless digital broadcast signal
  • Anti-noise method for transmitting wireless digital broadcast signal

Examples

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Embodiment Construction

[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] A schematic diagram of an embodiment of signal transmission between a transmitter and a receiver according to the anti-noise wireless digital broadcasting signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0037] 1) The certain anti-noise 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;

[0038] 2) This certain anti-noise wireless digital broadcasting signal transmitter forms the FFT coded data block on the frequency domain with its input data bit stream through LDPC code, and FFT represents fast discrete Fourier transform, and the length of FFT c...

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Abstract

The invention discloses an anti-noise method for transmitting a wireless digital broadcast signal, which is a transmission proposal of time domain and frequency domain mixing. The anti-noise method for transmitting a wireless digital broadcast signal disclosed by the invention has the advantages of low peak-to-average power ratio, short synchronization time, noise influence resistance, controllable multi-service etc.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/03H04L1/00
Inventor 郑紫微徐铁峰聂秋华何加铭
Owner 谢辉
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