Simulator for field wire

Abstract

The invention discloses a simulator for a field wire. The simulator is based on an FPGA development board, an analog-digital sampling module samples an analog signal sent by a remote transmission device of a sending end and converts the analog signal into a digital signal; a fast Fourier transform module transforms the digital signal from a time domain to a frequency domain; an Ethernet module is connected with a control computer, and the control computer transmits control information to the development board; the Ethernet module transmits analog characteristic parameter information of the field wire to a parameter storage module to be stored; a calculation module calculates a signal output by the fast Fourier transform module according to the analog characteristic parameter information of the field wire, in order to simulate the transmission characteristics of the field wire; and the fast Fourier transform module transforms the signal from the frequency domain to the time domain and matches with a digital-to-analog conversion module to convert a simulation result of the transmission characteristics of the field wire into a form capable of being received by the remote transmission device. The simulator disclosed by the invention can save the time of establishing a wireless communication system meeting the requirements of field operations.

Description

technical field [0001] The invention relates to the field of covered wires, in particular to a simulator for covered wires. Background technique [0002] Covered wire is a key transmission medium for field wired communication, and it is widely used in fields such as audio and digital communication. The use of covered wires to build field nets has the advantages of simple operation, stable performance, flexible maneuvering, convenient material acquisition, and low cost, and can undertake the task of field command in alpine mountains. [0003] In practical applications, it is necessary to quickly and timely evaluate the transmission performance of covered wires of different lengths and types, so as to build a wired communication system that meets the needs of field operations in a timely manner. In order to timely evaluate and predict the communication performance such as the output level, channel quality, and transmission rate of the covered line link, it is necessary to dev...

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Problems solved by technology

However, in practical applications, few people have proposed related complete implementation schemes

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