软件无线电中基于谱相关理论的调制模式识别技术

Modulation recognition technique using spectral correlation approach in software radio

随着多体制通信互联和软件无线电技术的发展,通信信号调制样式的识别逐渐成为一个重要的问题.这里在介绍谱相关函数原理、分析谱相关识别特性的基础上,提出了基于谱相关理论的常规通信信号调制模式识别方法及处理流程.该方法根据信号的谱相关特征参数能够比较准确地识别出信号的调制模式,仿真结果显示了该方法的正确性和可行性.

With the development of multi-communication scheme connections and the technology of software radio, communication signals' modulation recognition has been an important challenge. Here, the spectral correlation theory was introduced and recognition features were analyzed. Then the method and flow for usual modulation recognition using spectral correlation approach were presented. With the signals' parameters, the method can recognize the modulation mode. Simulation results show that the method is correct and viable.