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Anti-interference digital mobile broadcasting signal transmission method

A mobile broadcasting and signal transmission technology, applied in the field of mobile communication, which can solve the problems of sub-channel orthogonality destruction, mutual interference, system performance deterioration, etc.

Inactive Publication Date: 2011-11-23
TONGLING ZHAOLIN IND & TRADE CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The high peak-to-average power ratio (PAPR) of OFDM signals has high requirements on the linear range of amplifiers and digital-to-analog converters. If the linear range of the system cannot meet the signal changes, it will cause signal distortion and signal spectrum changes. , resulting in the destruction of the orthogonality between the sub-channels, resulting in mutual interference and deteriorating system performance

Method used

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  • Anti-interference digital mobile broadcasting signal transmission method

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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-jamming digital mobile broadcast signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0037] 1) The certain anti-interference digital mobile broadcast signal 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 the input data bit stream;

[0038] 2) The certain anti-jamming digital mobile broadcast signal transmitter passes its input data bit stream through RS coding, convolutional interleaving, serial concatenated multi-code rate punctured convolutional coding, symbol modulation and symbol ro...

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Abstract

The invention discloses an anti-interference digital mobile broadcasting signal transmission method which is a hybrid time domain / frequency domain transmission scheme. The anti-interference digital mobile broadcasting signal transmission method disclosed by the invention has the advantages of low peak-to-average power ratio, short synchronization time, interference resistance and controllable multi-service function.

Description

technical field [0001] The invention belongs to the field of mobile communication, and more specifically relates to an anti-interference digital mobile broadcast signal transmission method. Background technique [0002] 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 is the key technology of digital TV broadcasting system, plays a decisive role in the performance of the whole system, and is the object of everyone's key research. [0003] Due to the rapid development of digital signal processing technology and integrated circuit technology, the system realization of Orthogonal Frequency Divi...

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 TONGLING ZHAOLIN IND & TRADE CO LTD
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