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Table 3 Confusion Matrix at SNR = 3 dB.

From: Automatic Modulation Recognition Using Wavelet Transform and Neural Networks in Wireless Systems

 

QAM

PSK

ASK

FSK

MSK

QAM

99.7

0.2

0.1

  

PSK

0.4

99.2

0.2

0.1

0.1

ASK

0.3

0.1

99.4

0.1

0.1

FSK

 

0.1

 

99.6

0.3

MSK

 

0.1

 

0.3

99.6

  1. The confusion matrix shows a high percentage of correct inter-class modulation recognition (case I) when SNR is not lower than 3 dB.