Satellite signal simulator and satellite signal simulation method

A technology of satellite signal and simulation method, which is applied in the field of satellite communication to achieve the effects of improving accuracy and data reliability, diversifying types, and convenient and intuitive operation

Inactive Publication Date: 2017-02-22
SPACE STAR TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a satellite signal simulator and a satellite signal simulation method. The technical problem to be solved is that the existing satellite signal simulator has too much calculation and lacks a physical interface, and it cannot be completed in real time by using a computer alone. channel simulation

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  • Satellite signal simulator and satellite signal simulation method
  • Satellite signal simulator and satellite signal simulation method

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Embodiment Construction

[0044] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0045] see figure 1 , figure 1 It is the overall structure diagram of the satellite signal simulator of the present invention. The satellite signal simulator of the present invention includes: a channel parameter generation unit 20, a radio frequency input unit 40, a channel simulation unit 50 and a radio frequency output unit 60, wherein the channel...

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Abstract

The invention discloses a satellite signal simulator and a satellite signal simulation method. The satellite signal simulator comprises a channel parameter generation unit used for calculating channel feature parameters according to satellite channel model parameters, communication frequency points, orbit parameters, terminal parameters and environment parameters; a radio frequency input unit used for converting intermediate-frequency signals of a satellite down to baseband signals; a channel simulation unit used for, according to the channel feature parameters, respectively performing Doppler frequency shift, multipath shadow fading, additive white noise and amplification filtering processing on the baseband signals; and a radio frequency output unit used for converting the signals output by the channel simulation unit into radio frequency signals for output. According to the invention, the simulated channel model types are enabled to be more diversified, the operation is convenient and visual, and the work accuracy and the data reliability of the satellite signal simulator are improved.

Description

technical field [0001] The invention relates to the technical field of satellite communication, and in particular relates to a satellite signal simulator and a satellite signal simulation method. Background technique [0002] In the stage of satellite communication system design, planning, and pre-research of transceiver equipment, it is necessary to analyze and simulate the characteristics of the communication channel between the satellite and the ground, especially when the satellite is in low orbit, the communication between the satellite and the receiver The relative speed and relative acceleration are particularly large, and the satellite channel has high dynamic Doppler frequency shift transformation characteristics. When designing a reasonable and satisfactory satellite communication system and transceiver, it is necessary to fully consider the constraints of the mobile satellite channel on its performance, because the channel characteristics are the main factors affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391H04B17/00H04B1/00H04B7/185
CPCH04B1/0035H04B7/18532H04B17/0087H04B17/391H04B17/3911
Inventor 王元刘江春段鹏婷王育刚高素
Owner SPACE STAR TECH CO LTD
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