调制解调器(MODEM)在数字化地震信号传输中的作用分析

A BRIEF INTRODUCTION ON FUNCTION OF MODEM FOR DIGITAL SEISMIC SIGNAL TRANSMISSION

摘要:

数字信号的传输是数据通信的关键.用调制解调器(M O DEM)既能把数字信号变换成模拟信号,又能把收到的模拟信号恢复成数字信号.研究分析了V°24接口的工作原理,同时还介绍了M O DEM的基本原理.

Abstract:

The key of data communication is transmission of digital signal.The A/D transformation and D/A transformation can be carried out by using the MODEM.Process of V°4 interface is analysed.A brief introduction to the basic principle of the T-1496 MODEM is given.