題組內容

5. [15%] The received signal of a signal s(t) transmitting over a multipath channel is expressed as r(t)=s(t-T1)+0.2s(t-T2),
 where T2 =3T1. Assume that r(t)is sampled at the frequency fs=1/T1.

(a) What is the z-transform expression h[z] of the impulse response of the multipath channel? (5%)