Design and Realization of Communication Signal Source Based on DDS Technology
Huang Rui-guang · Audio Engineering · 2004
Direct digital synthesize(DDS)is a new method in frequency synthesize.Underwater acoustic com muni-cation has become a hotspot in modern communication research,because of its ad vantage,direct digital syn thesize-has been widely applied to it.The principle of DDS,the structure and features of AD9852are introduced.Audio communication signal source which can generate multiple signal modes is designal and realized by MCU controlled AD9852.It can modi fy the parameter through serial interface.This paper also introduces some application of this signal source.It is worth using under the circumstance of narrow band in underwater acoustic communication.[