Time and frequency domain analyses of discrete time signals and systems. Time-delay and phase-shifting. Modulation and frequency shifting. DTFT, DFT, and z-transforms of signals. Stability of causal and non-causal digital filters. Energy and power signals. Modeling of random power signals utilizing filtered white noise. Power spectral density and SNR. Improving SNR through filtering. Wiener filters. Matched filters. Amplitude and phase spectra. FIR and IIR digital filter design. Prerequisites: Must be in the professional EE program and C or better in each of the following: EE 3316 and EE 3330 (or concurrent enrollment).