一种基于FPGA平台的宽带信号检测算法的实现

Implementation of Wideband Signal Detection Algorithm based on FPGA Platform

现代通信系统采用的宽带传输体制已成为无线电监测的重要目标。如何在满足数字化处理单元硬件开销的前提下,实现对宽带信号的载频、带宽、调制样式以及符号速率的准确检测,对宽带信号监测的工程实现有着重要意义。通过分析宽带信号检测的算法原理,设计了一种基于现场可编程逻辑器件(Field-Programmable Gate Array,FPGA)的宽带信号检测实现方案和流程。该方案充分考虑了典型宽带信号的带宽和调制特点,在满足调制样式识别和符号速率识别准确率的基础上节省了硬件资源。

The broadband transmission system adopted by modern communication systems has become an important target of radio monitoring.How to achieve accurate detection of the carrier frequency,bandwidth,modulation style,and symbol rate of broadband signals under the premise of meeting the hardware overhead of the digital processing unit is of great significance to the engineering realization of broadband signal detection.By analyzing the algorithm principle of wideband signal detection,a FPGA-based implementation scheme and process of wideband signal detection is designed.The scheme fully considers the bandwidth and modulation characteristics of typical broadband signals,and saves hardware resources on the basis of meeting the accuracy of modulation pattern recognition and symbol rate recognition.