位置报告系统用声表面波可程序MSK调制解调组件  

A Programmable SAW MSK Modulation and Demodulation Module Used in Position Report System

作　　者：刘刚[1] 江洪敏[1] 江波[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2002年第3期175-177,共3页Piezoelectrics & Acoustooptics

摘　　要：介绍了声表面波可程序 MSK调制解调组件设计及工作原理 ,该产品用于位置报告系统 ,完成对 MSK信号的扩频调制解调以及对信息的差分相干解调 ,不需提取载波及恢复时钟等处理 ,提高了系统抗干扰能力和实时处理速度。同时由于扩频码序列随时可变 ,大大提高了系统保密性能。与其他技术相比 ,具有独特的优势 ,有很好的应用前景。A programmable SAW MSK modulation and demodulation module applied in position report system is presented in this paper.Completed by spread spectrum(SS) modulation and demodulation for MSK signal and differential coherent data demodulation for the position,there would be no need for carrier pick up and clock recovering,which will greatly improve the anti interference ability and real time processing rate of the system.Since the SS code can vary at any time,the security of the system will also be improved.Having such unique superiority over other technology,the module deserves good application potential.

关 键 词：直接序列扩频 差分相干解调 MSK信号 

分 类 号：TN65[电子电信—电路与系统]