多电平编码数字音频传输系统的设计与实现.

The technology of multilevel encoding modulation is widely used in the new generation ultrahigh speed optical communication systems, its hardware is integrated circuit so it is complex. To satisfy the experiment teaching and make the students understand urology fronts and skilled technology. A digital voice transmission experiment system based on multilevel encoding is designed. The system can realize sending and receiving of digital voice signal which comes from two channels accurately, the idea of modularization design makes the students know the functions of each module visually though observing the time domain waveform, and the modules can be alternative designed. With the aid of the experiment system, undergraduate research innovation experiments are developed. It shows a practical environment which is easy to innovate outcomes and integrate knowledge, and it can improve students' comprehensive utilization and innovation ability. [ABSTRACT FROM AUTHOR]