Intra-pulse modulation recognition using short-time ramanujan Fourier transform spectrogram
Abstract Intra-pulse modulation recognition under negative signal-to-noise ratio (SNR) environment is a research challenge.This article presents a robust algorithm for the recognition of 5 types of radar signals with large variation range in the signal parameters in low SNR using the combination of the Short-time Ramanujan Fourier transform (ST-RFT