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An anti-jamming digital wireless broadcasting signal transmission method

A technology for digital wireless broadcasting and signal transmission, applied in digital transmission systems, transmission systems, shaping networks in transmitters/receivers, etc., can solve problems such as sub-channel orthogonality destruction, system performance deterioration, and signal distortion

Inactive Publication Date: 2011-12-21
张婷
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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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  • An anti-jamming digital wireless broadcasting signal transmission method
  • An anti-jamming digital wireless broadcasting signal transmission method
  • An anti-jamming digital wireless broadcasting signal transmission method

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Embodiment Construction

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

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

[0037] 1) This certain anti-interference digital wireless broadcast signal transmitter converts the multimedia data stream into a bit stream through a media data processor, and utilizes the scrambling code sequence generated by the feedback shift register to perform scramble processing to form an input data bit stream;

[0038] 2) The certain anti-interference digital wireless broadcast signal transmitter transmits its own input data bit stream through RS coding, convolutional interleaving, serial concatenated multi-rate punctured convolutional coding, symbol modulation...

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Abstract

The invention discloses an anti-interference digital radio broadcast signal transmission method which is a transmission scheme of mixing a time domain and a frequency domain. According to the anti-interference digital radio broadcast signal transmission method disclosed by the invention, a low-complexity peak-to-average power ratio reduction technology, a combined code modulation technology, a signal frame time-frequency domain combined iteration separation treatment technology are designed aiming at the technical problems of high signal peak-to-average power ratio and channel interference ofa broadband multi-carrier digital radio broadcast transmission system, which need to be solved, and therefore the broadband multi-carrier digital radio broadcast transmission system has the advantages of low peak-to-average power ratio, short synchronization time, anti-interference, controllable multi-service, and the like.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more particularly relates to an anti-interference digital wireless broadcast signal transmission method. Background technique [0002] The technology related to digital TV broadcasting and its related industries are rapidly developing industries in the field of communications and computers, with good market prospects. In terms of the related technologies of digital TV broadcasting, the current focus of various countries is how to provide a low-cost, reliable and high-speed mobile solution for digital TV broadcasting in a complex wave propagation environment. Transmission technology is the key technology of digital TV broadcasting system, which plays a decisive role in the performance of the whole system, and is the object of our research. [0003] Due to the rapid development of digital signal processing technology and integrated circuit technology, the system implementation of Orthogon...

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 张婷
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