Discrete-Time Signals. Time-Domain Representation A complex sequence x[n can be written as xn=rein+jiim[n whe ere XmIn an nd ximIn] are the real and imaginary parts ofxn The complex conjugate sequence ofin is given by ( x*[n]=xre[n]-jinm[n) Often the braces are ignored to denote a sequence if there is no ambiguity Copyright C 2001, S.K. Mitra8 Copyright © 2001, S. K. Mitra Discrete-Time Signals: Time-Domain Representation • A complex sequence {x[n]} can be written as where and are the real and imaginary parts of x[n] • The complex conjugate sequence of {x[n]} is given by • Often the braces are ignored to denote a sequence if there is no ambiguity x [n] re x [n] im {x[n]} {x [n]} j{x [n]} = re + im {x*[n]} {x [n]} j{x [n]} = re − im