| 摘要: |
| 根据遥测中频PCM/FM信号的解调原理，介绍了FM解调及
自动频率控制（AFC）设计的理论架构和实现方法，通过理论分析、公式推导和Matlab仿真
等手段证明了方法的正确性，在此基础上完成VHDL程序设计，最后进行了仿真测试和实验验
证。仿真结果和实验结果证明了该实现方法的可行性。 |
| 关键词: 遥测 PCM/FM 解调算法 自动频率控制 低通滤波器 VHDL |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目: |
|
| VHDL Design of FM Demodulation and AFC Algorithm |
| SUN Xiu-rui |
| (Institute of Electronic Engineering, China Academy of Engineering Physics,Miany
ang 621900,China) |
| Abstract: |
| The method of FM demodulation of
telemetry PCM/FM signal is given. By theoretical analysis, formula deduction and
Matlab simulation, the correctness of this FM demodulation and AFC method is co
nfirmed. The VHDL code is designed according to the mathematical model. Finally,
computer simulation and experimentation are provided and the result proves the f
easibility of this implementation approach. |
| Key words: telemetry PCM/ FM demodulation algorithm AFC low pass filter VHDL |
《电讯技术》编辑部 