Modulation classifiers based on orthogonal transform and cyclostationarity feature detection

This paper describes perspective methods for the modulation recognition in HF and VHF bands. Automatic modulation recognition is rapidly evolving signal analysis area. The modern systems of signal processing can utilize cyclostationary feature detection. This paper provides the brief description of time domain key descriptor - cyclic autocorrelation function and frequency domain key descriptor - spectral correlation density function of cyclostationary signals and this paper describes the use of orthogonal transforms for the digital modulation recognition.