| 摘要: |
| 介绍了超短波通信电台的低成本信号处理模块的设计方法和技巧。借助XILINX公司的
低成本FPGA，采用软件无线电技术，实现了多种调制方式的中频调制解调和话音静噪功能。
由于核心技术均是在一块FPGA芯片上通过硬件描述语言编程实现的，所以此种设计方法在
很大程度上降低了硬件成本，也为新功能的扩充留有余地。另外，通过反复实验和使用，验
证了各项技术指标均达到了电台技术要求，并且通信效果良好。 |
| 关键词: 航空通信；超短波通信电台；信号处理；软件无线电 中频调制解调；静噪 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目: |
|
| Design of Low-cost Signal Processing Module for VHF Radio |
| YAO Yuan-fei |
| (Southwest China Institute of Electronic Technology, Chengdu 610036, China) |
| Abstract: |
| The design method and techniques for low-cost signal processing module of ultras
hort wave or VHF(Very High Frequency) radio are introduced. With low-cost XILINX
′s FPGA, using s
oftware radio technology, a variety of modulation of the IF(Intermediate Frequen
cy) modulation
and demodulation and the quieting tone function are achieved. Because the core
technologies are realized in an FPGA chip through hardware description language
programming,this desig
n method can reduce the hardware cost to a great extent,and is also conservative
for t
he new function expansion. In addition, repeated experiments and application ver
ify that the technical specifications meet the requirements of radio and
the radio possesses good communication performance. |
| Key words: aviation communication VHF radio signal processing software radio IF modulation and demodulation quieting tone |
《电讯技术》编辑部 