Extracting Seven Instantaneous Information-Based Signal Features

Extraction of seven instantaneous information-based signal features implemented through MATLAB algorithms: maximum value of zero-centered normalized instantaneous amplitude power spectral density, standard deviation of zero-centered normalized instantaneous amplitude absolute value, standard deviation of absolute value of instantaneous phase nonlinear components for zero-centered non-weak signal segments, standard deviation of instantaneous phase nonlinear components for zero-centered non-weak signal segments, standard deviation of absolute value of instantaneous frequency for zero-centered normalized non-weak signal segments, maximum value of normalized instantaneous frequency power spectral density for a signal segment, and feature parameters derived from distinct XI-axis projection characteristics of QPSK and 16QAM signals.