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Baseband channel simulation system of mobile satellite suitable for Ka frequency band

A mobile satellite and baseband channel technology, which is applied in the field of satellite communication simulation, can solve problems such as the Ka-band channel characteristics are not considered, and there is no real-time satellite baseband channel simulation system in the Ka-band, achieving low-cost effects

Active Publication Date: 2012-06-27
DALIAN UNIVERSITY
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Problems solved by technology

[0004] At present, domestic research on the Ka-band satellite channel mainly focuses on the rain attenuation prediction model and anti-rain attenuation technology, and the existing channel simulators are mainly suitable for lower frequency bands, such as the L-band, without considering the uniqueness of the Ka-band Channel characteristics, such as the impact of weather factors such as rain attenuation on satellite communication channels
Therefore, there is no real-time satellite baseband channel simulation system suitable for Ka frequency band

Method used

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  • Baseband channel simulation system of mobile satellite suitable for Ka frequency band
  • Baseband channel simulation system of mobile satellite suitable for Ka frequency band
  • Baseband channel simulation system of mobile satellite suitable for Ka frequency band

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[0043] In order to enable those skilled in the art to better understand and realize the present invention, the specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and specific examples. The protection scope of the present invention is not limited to the scope described in the specific examples. .

[0044] Such as figure 1 As shown, the embodiment of the present invention is applied to the simulation of the working status of each stage of the coding channel after the channel coding and before the channel decoding in the satellite communication link, and the noise or interference is finally reflected as a bit error.

[0045] Such as figure 2 As shown, the embodiment of the present invention includes a real-time channel control device 1 , a real-time channel simulation device 2 , and a communication interface 3 .

[0046] Such as figure 2 As shown, the real-time channel control device 1 includes a s...

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Abstract

The invention relates to a baseband channel simulation system of a mobile satellite suitable for a Ka frequency band, which comprises a real-time channel control device and a real-time channel simulation device; the real-time channel control device comprises a simulation parameter setting module, an error code characteristic simulation module and an error code threshold computation module; the real-time channel simulation device comprises a channel characteristic generation module and an error code superposition module; and the error code type and the error code threshold of a link scene set by a user can be generated by the real-time channel control device, a link simulation error-code pattern can be generated by the real-time channel simulation device according to the error code type and the error code threshold, and the simulation of signal transmission under the set link scene is finished. According to the baseband channel simulation system of the mobile satellite suitable for the Ka frequency band, the simulation of a channel of a satellite ground station and a link between satellites in systems, such as a communication satellite, a relay satellite and the like, can be truly carried out with lower cost under the environment of a laboratory. The baseband channel simulation system of the mobile satellite suitable for the Ka frequency band is especially suitable for verifying the practicability and the effectiveness of a satellite communication technology with a Ka frequency band.

Description

technical field [0001] The invention relates to the field of satellite communication simulation, in particular to a mobile satellite baseband channel simulation system suitable for Ka frequency band. Background technique [0002] In the research process of satellite communication system, in order to realize the reliable transmission of information, various communication technologies must be selected according to the link characteristics in the system planning and design stage, such as modulation mode, multiple access mode, channel / cell coding mode and power control technology etc., but due to limited conditions, the actual test of the channel cannot be carried out in real time. Channel simulators are usually used to simulate the fading characteristics of satellite mobile channels in different environments. At the same time, the channel simulator can easily simulate and verify the practicability and effectiveness of various technologies. sex. At present, there are mainly thr...

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Application Information

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IPC IPC(8): H04B7/185H04B17/00H04B17/391
Inventor 潘成胜刘春玲别玉霞邱少明李华芳
Owner DALIAN UNIVERSITY
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