基于对星座图分形的Qam信号识别

Qam signals recognition based on fractal research of constellation

星座图是Qam调制信号的重要特征,分形理论是研究图形属性的一种前沿工具。将分形和星座图结合,计算星座图所对应的格形分形维数和信息维数等分形理论中的特征量,把他们作为区分调制类别的特征向量,进行信号识别。该方法经实验验证能够有效的进行Qam信号的识别。

Constellation shape is regarded as a robust and stable signature for Qam signal recognition and fractal theory is a useful tool for image research.This paper takes the fractal research on the constellations of different Qam signals, different constellations have different features, and uses these differences to classify the Qam signals.It cacaulates the fractal dimensions as the feature. This method is experimentally approved effiective in signal recognition.