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Anti-noise digital mobile radio signal transmission method

A technology of mobile broadcasting and signal transmission, 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: 2014-04-30
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] Aiming at the problem of high data rate controllable multi-service digital TV anti-noise digital mobile broadcasting, the present invention proposes a signal transmission method for anti-noise digital mobile broadcasting

Method used

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  • Anti-noise digital mobile radio signal transmission method

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] A schematic diagram of an embodiment of signal transmission between a transmitter and a receiver according to the anti-noise digital mobile broadcasting signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0038] 1) The certain anti-noise digital mobile 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;

[0039] 2) The certain anti-noise digital mobile broadcast signal transmitter forms an FFT bit-interleaved coded modulation data block in the frequency domain after its input data bit stream undergoes LDPC encoding, bit interleaving, symbol modulation and symbol rotat...

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Abstract

The invention discloses an anti-noise digital mobile radio signal transmission method and relates to a hybrid framing modulation scheme of the time domain and the frequency domain. Due to the bit interleaved coded modulation mode, the training sequence optimization design, the signal generating scheme and the signal selection method of the anti-noise digital mobile radio signal transmission method, OFDM signals can be processed and recovered at a receiver end easily to obtain original signals of the OFDM signals, and the method has the advantages of being low in peak average power rate, 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-noise digital mobile broadcast signal transmission method. Background technique [0002] At present, television broadcasting has gradually developed from analog to digital. Digital TV digital mobile broadcasting transmission system, as an important part of digital TV digital mobile 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 mobile 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 mobile broadcasting, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile implementation solutions for digital TV...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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