Discrete-Time Signals Time-Domain Representation A length-N sequence is often referred to as an N-point sequence The length of a finite-length sequence can be increased by zero-padding, i.e., by appending it with zeros 15 Copyright C 2001, S.K. Mitra15 Copyright © 2001, S. K. Mitra Discrete-Time Signals: Time-Domain Representation • A length-N sequence is often referred to as an N-pointsequence • The length of a finite-length sequence can be increased by zero-padding, i.e., by appending it with zeros