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Receiving method for bandwidth expansion of 1553B communication bus

A technology of bandwidth expansion and receiving method, applied in the direction of shaping network, baseband system components, multi-carrier system, etc. in transmitter/receiver, which can solve problems such as inability to meet data transmission

Inactive Publication Date: 2012-12-12
TIANJIN UNIV
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Problems solved by technology

However, its 1Mbps transmission rate has become its limiting factor. For this reason, some companies currently try to use 4Mbps and 8Mbps to transmit data, which improves the transmission rate to a certain extent, but it still cannot meet the increasing amount of data transmission in the future. (video, audio, distributed data) requirements

Method used

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  • Receiving method for bandwidth expansion of 1553B communication bus
  • Receiving method for bandwidth expansion of 1553B communication bus
  • Receiving method for bandwidth expansion of 1553B communication bus

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specific Embodiment approach

[0079] figure 1 It is a schematic diagram of the location and function of the receiving method for the bandwidth expansion of the 1553B communication bus. The receiver is used to receive high-speed data transmitted on the 1553B bus.

[0080] The function of the present invention is to simultaneously transmit 1 / 2 / 4 / 8 Mbps data and high-speed data suitable for the receiving end on the 1553B bus, and convert the data received by the analog front end into high-speed baseband data, so as to expand the communication capacity and expand the The effect of data transfer volume. The overall receiver scheme is as follows figure 2 shown.

[0081] 1 This invention applies to the reception of DMT signals transmitted by transmitters using the following parameters. Such as image 3 shown.

[0082] The present invention uses the frequency band 20.3635MHz to 49.3412MHz, such as Figure 4 As shown, the peak output power is 3W, and a total of 4096 subcarriers are set, of which the real ca...

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Abstract

The invention relates to a 1553B digital communication device. In order to expand the communication capacity, expand the data-transfer capacity and enhance the communication properties such as property in resisting interference and the like in a 1553B bus, the invention provides the technical scheme: a receiving method for bandwidth expansion of a 1553B communication bus. The following method sub-modules: an analog front end (AFE), a frame detecting module, a symbol synchronizing module, an inverse FFT (fast Fourier transformation) module, a block floating point module, a channel balancing module, a frequency offset synchronizing module, a QAM (quadrature amplitude modulation) de-mapping module of a dynamic threshold and a base-band processing module are provided in the receiving method, wherein the AFE is used for performing signal amplification and AD (analog-to-digital) conversion, sampling an analog signal into a digital signal and transmitting; the frame detecting module is used for detecting the access situation of a frame; the IFFT module is used for processing a base-band signal. The method provided by the invention is mainly used for 1553B digital communication.

Description

technical field [0001] The present invention relates to a digital communication device, and more particularly to a receiver and a receiving method of a digital communication device using a multi-carrier modulation method. The invention belongs to the field of digital information transmission technology and aerospace technology. Specifically, it relates to a receiving method for 1553B communication bus bandwidth expansion. Background technique [0002] The 1553B bus is the abbreviation of MIL-STD-1553B, and its full Chinese name is the aircraft internal time-division command-responsive multiplex data bus. The connection between its devices is simple and flexible, the noise tolerance is high, and the communication is efficient and reliable. After 30 years of development, the 1553B bus technology has also been continuously improved, and it has become the dominant bus standard in the aerospace field. The MIL-STD-1553B bus is highly reliable and flexible while ensuring real-ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/38H04L25/02H04L25/03
Inventor 侯永宏张昊高广杰汪清王帅王刚
Owner TIANJIN UNIV
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