摘要
FSK是一种广泛应用于各种遥测以及通信系统的调制方式,具有抗干扰性强的特点。利用直接数字频率合成技术来实现FSK调制,具有可以对调制信号响应到零频、控制方便、结构简单、频率响应高等优点。介绍了基于AD公司的AD9954设计的S波段FSK发射机的实际原理样机,并对其进行测试,得到了良好的实际效果,可广泛应用于遥测以及无线通信系统。
FSK is a kind of modulation mode which is used in lots of wireless communication system. It has the advantage of strong anti-jamming. Using of the Direct Digital Frequency Synthesizer（DDS） technology to realize the FSK modulation has the advantages of high-speed modulation rate response, expedient control, and simple structure. Based on the AD9954, the prototype is designed and tested. The test result proves that the method is feasible, and it will have extensively application.
出处
《科学技术与工程》
2009年第12期3262-3265,3277,共5页
Science Technology and Engineering
