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A demodulation device

A demodulation device and descrambling technology, applied in the field of communication, can solve problems such as complex implementation of baseband demodulation algorithm

Active Publication Date: 2022-08-09
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the characteristics of many types of data packets in the satellite communication system (such as signaling packets, business packets, etc., different types of packets have a variety of different encoding methods), the implementation of the baseband demodulation algorithm in the FPGA becomes extremely complicated.

Method used

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Embodiment Construction

[0031] In order to have a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] The embodiment of the present application provides a demodulation device, figure 1 A schematic structural diagram of an implementation manner of the demodulation apparatus provided in the embodiment of the present application, such as figure 1 As shown, the device includes: a radio frequency receiving module 11, a field programmable logic gate array FPGA module 12 and a digital signal processor DSP module 13; wherein,

[0033] The radio frequency receiving module 11 is used to receive baseband signals and send the baseband signals to the FPGA module;

[0034] The FPGA module 12 is used to channelize the baseband signal and send the processed signal to the DSP module 13; the DSP module 13 ...

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Abstract

The embodiment of the present application discloses a demodulation device, the device includes: a radio frequency receiving module, a field programmable logic gate array FPGA module and a digital signal processor DSP module; wherein, the radio frequency receiving module is used for receiving baseband signals , and send the baseband signal to the FPGA module; the FPGA module is used to channelize the baseband signal, and send the processed signal to the DSP module; the DSP module uses performing demodulation processing on the processed signal, and returning the demodulated signal to the FPGA module; wherein, the demodulation processing includes timing synchronization processing, carrier synchronization processing and frame synchronization processing.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a demodulation device. Background technique [0002] Satellite communication has been widely used due to its advantages of large coverage area, long communication distance, large communication capacity, and not being restricted by geographical conditions. With the development of communication satellite technology, the range of available frequency points for satellite communication is getting wider and wider, and the application of high-bandwidth and large-capacity satellite communication systems is also more extensive. With the rapid development of high-performance computers, the processing capabilities of the upper-layer application systems of satellite communication systems are also increasing. [0003] Field Programmable Gate Array (FPGA) has been widely used in communication systems due to its high parallel processing capability and programmable chara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04B7/185
CPCH04B7/1851H04B7/18513H04L25/0292Y02D30/70
Inventor 刘学毅马效波闫峥张少真成丹
Owner SPACE STAR TECH CO LTD
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