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Error vector magnitude measurement device and method for satellite mobile communication terminal

A technology of satellite mobile communication and vector amplitude error, which is applied in transmission monitoring, electrical components, radio transmission systems, etc., can solve problems such as inability to judge calculation results and complicated calculation methods, so as to improve measurement accuracy, meet test requirements, reduce The effect of small calculation errors

Active Publication Date: 2012-10-17
SPACE STAR TECH CO LTD
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Problems solved by technology

The calculation method of this method is complicated, and the reference signal is determined on the basis of the received signal. When the bit error rate is high, it is impossible to judge whether the calculation result is accurate.

Method used

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  • Error vector magnitude measurement device and method for satellite mobile communication terminal
  • Error vector magnitude measurement device and method for satellite mobile communication terminal

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the satellite mobile communication terminal vector magnitude error measurement device of the present invention includes the following modules:

[0031] Satellite mobile communication protocol simulation base station module: In order to measure the EVM parameters of the satellite mobile communication terminal in actual communication, it is necessary to simulate the actual call process. The simulated base station module meets the basic communication needs, has voice communication functions and basic control functions, and can meet both The mutual communication requirements of one terminal, but does not have the access function of multiple terminals. The sending and receiving channel of the analog base station module is single, only to meet the communication needs of the two terminals. The analog base station module also has the funct...

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Abstract

The invention discloses an error vector magnitude measurement device and a method for a satellite mobile communication terminal. The device comprises an input module, an output module, a control module, an EVM (Error Vector Magnitude) calculation module, a satellite mobile communication protocol simulation terminal module, a satellite mobile communication protocol simulation base station module, a duplexing module, a radio frequency processing module and an interface module. Through the simulation of a mobile communication channel and the calculation of error vector magnitude simulator to the actual communication process, the requirement on the testing of a satellite mobile communication system is met, and further, the vector magnitude device and the method are applicable to a GMR (Giant Magneto Resistance) system and very significant for actual engineering application.

Description

technical field [0001] The invention relates to a device and method for measuring vector amplitude errors of satellite mobile communication terminals, which are used for measuring vector amplitude errors of terminal signals in satellite mobile communication systems. Background technique [0002] Similar to the current general 2G communication GSM mobile communication system, the GMR (GEO-Mobile Radio, geosynchronous orbit mobile communication) system is also applied to mobile communication. The difference between the GMR system and the GSM system is that the latter is applied to ground mobile communications, and all base station terminals and core network facilities are located on the ground, while the former is applied to satellite mobile communications, and signals need to be transmitted through satellite channels. [0003] In the GMR system, different channels use different modulation methods. For the main traffic channel (TCH3 / 6 / 9) and broadcast control channel (BCCH), t...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B7/185H04B17/391H04B17/40
Inventor 赵琦王海涛杨博邹光南
Owner SPACE STAR TECH CO LTD
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