Spectral Analysis of Sinusoidal Signals The continuous-time angular frequency corresponding to the DFT bin number k (DFT frequency)is given by 2k= 2πk RT To interpret the results of DFT-based spectral analysis correctly we first consider the frequency-domain analysis of a sinusoidal signalSpectral Analysis of Sinusoidal Signals • The continuous-time angular frequency corresponding to the DFT bin number k (DFT frequency) is given by RT k k 2π Ω = • To interpret the results of DFT-based spectral analysis correctly we first consider the frequency-domain analysis of a sinusoidal signal