基于FPGA的信道化监测接收机实现

An Implementation of a Monitoring Channelized-Receiver Based on FPGA

数字信道化接收机具有全概率、实时接收的特点,已经广泛应用于电子战、软件无线电等领域。为解决无线电信号搜索系统中处理速度与高分辨率之间的矛盾,在讨论了信道化原理的基础上利用Verilog HDL语言在Xilinx-V5系列开发板上实现了一个8信道的用于监测频谱的信道化接收机,采用自上而下的模块化设计方法重点介绍了信道化处理部分的实现。实现结果表明中频输入信号能在对应的信道得到正确输出,分辨率提高了8倍。具有一定的工程实用价值。

Digital channelized receiver has been widely applied in the electronic warfare,software radio and other fields because of its characters of full probability,real-time. To solve the problem in radio signals search system of contradiction between the processing speed and high resolution, an 8-channel monitoring channelize-receiver has been implemented on Xilinx-V5 series development board by Verilog HDL,which is based on the discussion of the principle of the channelized technology. Mainly introduces the channelized processing part of the implementation which is based on modularized design method. The result of implementation has shown that the input signals can get the correct output at its corresponding channel,and resolution is raised 8 times. The system has some practical value in engineering.