Random signal analysis experiment virtual simulation system and control method

A random signal and virtual simulation technology, applied in the field of experimental network teaching, can solve the problems of high economic cost and difficulty in guaranteeing students' experiments, and achieve the effect of flexible experimental site, scalable experimental content, and reduced burden.

Pending Publication Date: 2022-04-26
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The traditional offline experiment mode has relatively high economic costs
[0006] (2) In the traditional experimental mode, it is difficult to ensure that students in a class can enter the laboratory to complete the experiment at the same time

Method used

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  • Random signal analysis experiment virtual simulation system and control method
  • Random signal analysis experiment virtual simulation system and control method
  • Random signal analysis experiment virtual simulation system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In an embodiment of the present invention: the communication signal generation hardware circuit module 1 includes a digital modulation system and an analog modulation system, wherein the digital modulation system includes an ASK modulation system, an FSK modulation system, a BPSK modulation system, a QPSK modulation system, and a 16QAM modulation system; Modulation systems include AM modulation systems, FM modulation systems, and PM modulation systems.

Embodiment 2

[0067] In the embodiment of the present invention: the noise generation software module 2 can generate random noises of several different distributions, specifically including a normal distribution noise generation module, a Poisson distribution noise generation module, and a Rayleigh distribution noise generation module.

Embodiment 3

[0069] In an embodiment of the present invention: the communication system circuit module 3 includes a linear system circuit and a nonlinear system circuit, wherein the linear system includes a low-pass filter circuit, a high-pass filter circuit, and a band-pass filter circuit, and the nonlinear circuit includes a limiter Amplifier circuits, diode circuits, mixer circuits.

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Abstract

The invention belongs to the technical field of experimental network teaching of communication engineering, information engineering and the like, and discloses a random signal analysis experiment virtual simulation system and a control method, and the random signal analysis experiment virtual simulation system comprises a communication signal generation hardware circuit module which is used for generating communication signals of different modulation modes; the noise generation module is used for generating a noise signal; the communication system hardware circuit module is used for realizing a linear system or a nonlinear system; and the signal analysis software module is used for realizing characteristic analysis of the communication signal. According to the invention, a virtual simulation experiment platform of a random signal analysis experiment combining software and hardware is adopted, so that the problem of overlarge investment of experiment equipment can be solved, and the problem of incapability of gathering can also be solved; meanwhile, the experiment time and the experiment site of students are flexible, and the students can perform the experiment anytime and anywhere as long as the network and the notebook computer exist.

Description

technical field [0001] The invention belongs to the technical field of experimental network teaching such as communication engineering and information engineering, and in particular relates to a random signal analysis experiment virtual simulation system and a control method. Background technique [0002] At present, "Random Signal Analysis Experiment" is a compulsory experimental course for communication engineering, information engineering and other related majors. The specially developed experimental box and specially designed experimental items analyze and test the working principle, composition and performance of each subsystem, so that students can recognize the characteristics of random signals in various communication systems. Through experiments, master the use of conventional measuring instruments in communication engineering; cooperate with typical experimental systems to learn the testing essentials of the main performance indicators of the system, enrich and bro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 付卫红刘乃安韦娟
Owner XIDIAN UNIV
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