Design of Highly Reliable Digital Signal Transmission System Based on Serial Communication Protocol

This paper mainly studies the basic concept of baseband transmission of digital signal and the transmission processof digital signal baseband transmission and how to design digital baseband transmission system with MATLABsoftware simulation. This paper fi rst introduces the theoretical basis of this subject, including digital communication,the composition of digital baseband transmission system and digital baseband signal transmission process. Then thepaper introduced the characteristics of digital baseband transmission system, including digital PAM signal powerdensity and common line pattern, and by comparing choosing the fi nal bipolar zero return code. Then we introducedthe MATLAB simulation software. The conditions of the best reception of the digital baseband signal are describedand how the waveform of the baseband signal is observed by an oscilloscope. Finally, according to the basic stepsof simulation process, the simulation process of digital baseband transmission system is realized by MATLABsimulation tool, and the system is analyzed.

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The Design and Characteristic Analysis of a Digital Signal Transmission System Based on Power Line Communications

Transactions on Electrical and Electronic Materials ◽

10.4313/teem.2009.10.6.222 ◽

2009 ◽

Vol 10 (6) ◽

pp. 222-226

Author(s):

Ji-Hyoung Kim ◽

Ji-Hun Yun ◽

Yong-K. Kim ◽

Byung-Moon So

Keyword(s):

Signal Transmission ◽

Digital Signal ◽

Power Line ◽

Transmission System ◽

Characteristic Analysis ◽

Power Line Communications

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Application of Serial Communication Control in the Motion Control System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.328-330.1953 ◽

2011 ◽

Vol 328-330 ◽

pp. 1953-1956

Author(s):

Jian Qun Liu ◽

Ji Rong Wu ◽

Dong Xu ◽

Xiao Li ◽

Jian Huang

Keyword(s):

Motion Control ◽

Digital Signal Processor ◽

Data Transfer ◽

Communication Protocol ◽

Serial Communication ◽

Digital Signal ◽

Motion Controller ◽

Management Platform ◽

Whole Process ◽

Data Transfer Protocol

A serial communication protocol according to motion control (MC) system data format has been developed. Based on taking management platform which can be embedded controller or personal computer (PC) as the MC data sending station and motion controller whose core is Digital Signal Processor (DSP) as the MC data receiving station, the detailed situation of how to use the data transfer protocol and the data processing method in MC system is described. Firstly, the organization format of the serial communication data frame is introduced. Then, the relevant saving format of the MC data received by motion controller is described, and the way of how to receive the MC data from serial port is designed. Finally, the whole process of data saving in RAM and data taking out from RAM by motion controller are stated. With the serial communication protocol, a control solution has been provided in the MC system.

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