A kind of anti-noise digital wireless broadcasting signal transmission method

A technology of digital wireless broadcasting and signal transmission, which is applied in the direction of digital transmission system, transmission system, shaping network in transmitter/receiver, etc.

Active Publication Date: 2011-12-21
NANTONG UNIVERSAL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Aiming at the problem of high data rate controllable multi-service digital TV anti-noise digital wireless b

Method used

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  • A kind of anti-noise digital wireless broadcasting signal transmission method
  • A kind of anti-noise digital wireless broadcasting signal transmission method
  • A kind of anti-noise digital wireless broadcasting signal transmission method

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Embodiment Construction

[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] A schematic diagram of an embodiment of signal transmission between a certain transmitter and a receiver according to the anti-noise digital wireless broadcasting signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0036] 1) The certain anti-noise digital wireless 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;

[0037] 2) The certain anti-noise digital wireless broadcasting signal transmitter forms an FFT bit interleaved coded modulation data block in the frequency domain after its input data bit stream undergoes LDPC coding, bit interleaving, and symbol modulati...

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Abstract

The invention discloses an anti-noise digital wireless broadcast signal transmission method, which is a time domain and frequency domain mixed transmission scheme. The anti-noise digital wireless broadcast signal transmission method designs a low-complexity peak-to-average power ratio reduction technology, a bit interlaced coded modulation technology and a signal frame time-frequency domain combined iterative separation technology for solving technical problems to be solved of high signal peak-to-average power ratio and channel noise of a multi-carrier digital wireless broadcast transmission system, which makes the multi-carrier digital wireless broadcast transmission system have the advantages of low peak-to-average power ratio, short synchronization time, excellent anti-noise property, controllability for multiple services, and the like.

Description

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

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L25/03H04L1/00
Inventor 郑紫微徐铁峰聂秋华何加铭
Owner NANTONG UNIVERSAL MACHINERY
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