82.1 Discrete-Time Signals Time-Domain Representation Here, n-th sample is given by xn]=x2(t)l=nr=xa(nT),n=…,-2,-1,0,1, The spacing t between two consecutive samples is called the sampling interval or sampling period Reciprocal of sampling interval t, denoted as Fr, is called the sampling frequency: FT=1/T§2.1 Discrete-Time Signals: Time-Domain Representation • Here, n-th sample is given by x[n]=xa (t) | t=nT=xa (nT), n=…,-2,-1,0,1,… • The spacing T between two consecutive samples is called the sampling interval or sampling period • Reciprocal of sampling interval T, denoted as FT , is called the sampling frequency: FT=1/T