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Signal path signal transmission system, method and device for wireless channel experiment

A technology of wireless communication system and signal path, which is applied in the field of signal path signal transmission system of wireless channel experiment, can solve the problems of ineffective connection of channel model, high complexity of wireless channel modeling, and difficulty in implementation, so as to facilitate wireless communication teaching The effect of the experiment

Pending Publication Date: 2020-05-08
XIDIAN UNIV
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Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: wireless channel modeling is highly complex and difficult to implement; it cannot be effectively connected with the channel model implemented by software, and other wireless communication modules can only use software simulation methods at this time. Big difference from the actual situation

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  • Signal path signal transmission system, method and device for wireless channel experiment
  • Signal path signal transmission system, method and device for wireless channel experiment
  • Signal path signal transmission system, method and device for wireless channel experiment

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] In view of the problems existing in the prior art, the present invention provides a signal path signal transmission system, method, and device for wireless channel experiments. The present invention will be described in detail below with reference to the accompanying drawings.

[0036] Such as figure 1 As shown, the signal path signal transmission device for wireless channel experiment provided by the embodiment of the present invention includes: input port 1, output port 2, first microstrip line 3, second microstrip line 4, third microstrip line 5 , the fourth microstrip line 6, the first variable resistor 7, the s...

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Abstract

The invention belongs to the technical field of wireless communication experiment teaching, and discloses a signal path signal transmission system, method and device for a wireless channel experiment.An input port is connected to a transmitting antenna end of a wireless communication system through a radio frequency cable; anoutput port is connected to areceiving antenna end of the wireless communication system to form a complete wireless transceiving communication system; and attenuation of signals on each path is adjusted by adjusting avariable resistor on each microstrip line. According tothe invention, a plurality of microstrip lines and a plurality of variable resistors are used to simulate the multipath phenomenon in a wireless channel, the mode of wireless communication experimentteaching is changed, and students are helped to master the multipath phenomenon in the wireless channel and the influence of the multipath phenomenon on the performance of a wireless communication system. According to the invention, a hardware circuit is used to simulate a wireless channel, which is closer to an actual wireless communication system. The multipath module can be directly connectedwith a receiver and a transmitter in a communication system, thereby facilitating the development of a wireless communication teaching experiment.

Description

technical field [0001] The invention belongs to the technical field of wireless communication experiment teaching, and in particular relates to a signal path signal transmission system, method and device for wireless channel experiments. Background technique [0002] At present, the closest existing technology: wireless communication uses the characteristics of electromagnetic waves propagating in free space to realize information exchange, and the wireless channel environment composed of free space is very complicated, resulting in multiple signals when the wireless signal reaches the receiving end from the sending end path. Multiple signal paths cause the transmitted signal to suffer from inter-symbol interference, which seriously affects system performance and increases the bit error rate of the communication system. In terms of wireless communication theory, a large number of models have been established for wireless channels, including closed models, parametric models,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391G09B23/18
CPCH04B17/391G09B23/18
Inventor 魏建军刘乃安陆辉唐军
Owner XIDIAN UNIV
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