Discrete Systems: Relations, Linear Dynamics, and Operators

This lecture introduces discrete systems as relations between input and output quantities settled at discrete instants. It covers linear dynamics, causality, impulse response, convolution, delay operators, and pulse unit effects. The lecture also explores difference equations, initial conditions, and the impact of delay and advance operators on difference equations. Practical demonstrations include pulse width modulation (PWM) and delay effects on signals transmitted via serial lines.