| 摘要: |
| 针对软件无线电接收机对空中通信信号进行监测搜索的过程中频率分辨率与搜索速度
的矛盾，在分析中频信道化技术原理的基础上，设计了一种适用于频谱监测的信道化结构
，通过Simulink建模仿真验证了此种结构可以无误差地还原输入信号频谱，根据实际项目需
要，利用Xilinx 集成设计工具Sysgen进行快速设计并最终在FPGA中实现了八信道的信道化
结构。该设计方法可以大大加快信道化接收机的硬件实现速度，具有一定的工程实际应用价值。 |
| 关键词: 软件无线电接收机 信号搜索 信道化结构 信号还原 频谱监测 硬件实现 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（60990320,60990323,61271090）；
国家高技术研究发展计划（863计划）项目（2012AA012305）；四川省科技支撑计划项
目（2012GZ0101）；成都市科技计划项目（12DXYB347JH-002） |
|
| A high-efficient IF channelized structure for spectrum monitoring |
| RAN Xiao-gang,FENG Quan-yuan |
| () |
| Abstract: |
| For the contradiction between frequency resolution and search speed in
communication signal monitoring search process by software radio receiver, a su
itable channelized structure is proposed based on analysis of the principle
of the intermediate frequency channelized technology. Simulation results show t
hat this structure offers the error-free approximation to recover the spectrum
of input signal.With the help of Xilinx integrated design tool System Generator
, an 8-channel structure is realized in FPGA according to the actual need of th
e project.This design method can greatly improve the hardware realization speed o
f channelized receiver and find engineering application value. |
| Key words: software radio receiver signal search channelized structure signal recovery spectrum monitoring hardware implementation |
《电讯技术》编辑部 