Multi-Class Analogue Modulation Recognition Algorithms Based on Support Vector Machines

An algorithm based on Support Vector Machines(SVM) for recognition of analogue modulation signals is presented. By analyzing the modulation signals, a set of key features for identifying different types of analogue modulation are extracted and are mapped into the high dimension space. The classification is carried out in the high dimension space based on SVM and decision tree. The result shows that all types of analogue modulation can be classified with success rate more than 90% when SNR higher than 10 dB.