GMSK扩频调制信号解调解扩技术及实现  

Realization of Demodulation and Despread Technology for GMSK Spread Spectrum Signal

作　　者：梁先明[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2010年第5期51-55,共5页Telecommunication Engineering

摘　　要：分析并比较了两种GMSK软扩频调制解扩解调原理和方法,介绍了硬件实现中一些节省FPGA资源以及帧头判决的技巧和方法,最后在FPGA中实现和硬件验证了算法,结果证明该方法能够完全取代传统的声表面波(SAW)匹配滤波器方法。The principles and methods of two demodulation and despread technology for tamed spread spectrum GMSK modulation are analysed and compared. Then, the skills to save FPGA resource and detect frame are introduced in hardware design. Finally, the arithmetic is implemented in FPGA and verified by hardware. The result shows the method is feasible and can replace SAW（Surface Acoustic Wave） matched filter method.

关 键 词：突发通信 GMSK 扩频调制 解扩 软扩频 

分 类 号：TN76[电子电信—电路与系统]