Si = con = (VT/3,0,0) S2 = (VT/3, VT/3,0) (VT/3, VT/3, VT/3) S3 Where T is the symbol duration. a- Construct the signal-space diagram (Constellation diagram). b- Determine the energy of each signal. C- Determine the distance between s(t) ands (t). d- Find the angle between sz(t) andsz(t). 2- A signal x1(t) is bandlimited to 3kHz. There are three more signals x2(t), x3(t) and x4(t) which are bandlimited to 1kHz each. These signals are to be transmitted by a TDM system. 1. Design a TDM scheme where each signal is sampled at its Nyquist rate. ii. What must be the speed of commutator? iii. Calculate the minimum transmission bandwidth of channel. TO