| 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。 |
| 关键词: 突发通信 GMSK 扩频调制 解扩 软扩频 |
| DOI： |
|
| 基金项目: |
|
| Realization of Demodulation and Despread Technology for GMSK Spread Spectrum Signal |
| LIANG Xian-ming |
| (Southwest China Institute of Electronic Technology, Chengdu 610036, China) |
| Abstract: |
| The principles and methods of two dem
odulation and despread technology for tamed spread spectrum GMSK modulation are
analysed and compared.Then,the skills to save FPG
A resource and detect frame are introduced in hardware design.Finally,the arithm
etic is implemented in FPGA an
d verified by hardware.The result shows the method is feasible and can replace
SAW(Surface Acoustic Wave) m
atched filter method. |
| Key words: burst communication GMSK spread spectrum modulation despread tamed spread spectrum |
