Transmission method of anti-noise digital wireless broadcasting signals

A digital wireless broadcasting and signal transmission technology, applied in digital transmission systems, transmission systems, electrical components, etc., to achieve the effect of small amount of information and easy processing and recovery

Inactive Publication Date: 2014-05-07
NINGBO UNIV
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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 digital wireless b

Method used

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  • Transmission method of anti-noise digital wireless broadcasting signals
  • Transmission method of anti-noise digital wireless broadcasting signals

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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 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:

[0037] 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;

[0038] 2) The certain anti-noise digital wireless broadcast 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 modulation....

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Abstract

The invention discloses a transmission method of anti-noise digital wireless broadcasting signals. The transmission method is a framing modulation scheme with time domains and frequency domains being mixed. By means of the cascading interleaving coded modulation, the training sequence optimization design, the signal generating models and a signal selection method of the transmission method of the anti-noise digital wireless broadcasting signals, original signals of OFDM signals can be easily processed at a receiver end through processing and restoring, and the transmission method has the advantages of being low in PAPR, short in synchronous time, channel fading resistant, capable of controlling 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 digital wireless broadcasting transmission system, as an important part of digital TV digital wireless 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 and digital wireless 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 digital wireless broadcasting, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile implementation solutions for ...

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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