There is a system for modulating data QPSK and OQPSK. Suppose that data of [1000111001] is...

 

Transcribed Image Text:

There is a system for modulating data QPSK and OQPSK. Suppose that data of [1000111001] is input at a bit rate of Rb = 1 kbps. (a) Find the phase of the b_o(t) and b_e(t) and the QPSK modulated output signal in 1 msec intervals in a QPSK system with the structure shown in Figure. Indicate where the 180° phase transition occurs. (b) Repeat the process in (a) for the OQPSK system. You ID Tb b(t) SQPSK(t) B,(1) S/P T, 2T, b.(t) s -90° Acos2xfet 0 Asin2x/ Asin2xfet 2T Acos2xfet dt 90° 27, a transmitter di $BPSKI(1) #g(t) SBPSK2(1) 9 (1) X 2Th +7 27 Receiver QPSK System 1 Ave 0 DE BETOFPR(3), 17 TORN (10) SQPSK (1) b₁ P/S br There is a system for modulating data QPSK and OQPSK. Suppose that data of [1000111001] is input at a bit rate of Rb = 1 kbps. (a) Find the phase of the b_o(t) and b_e(t) and the QPSK modulated output signal in 1 msec intervals in a QPSK system with the structure shown in Figure. Indicate where the 180° phase transition occurs. (b) Repeat the process in (a) for the OQPSK system. You ID Tb b(t) SQPSK(t) B,(1) S/P T, 2T, b.(t) s -90° Acos2xfet 0 Asin2x/ Asin2xfet 2T Acos2xfet dt 90° 27, a transmitter di $BPSKI(1) #g(t) SBPSK2(1) 9 (1) X 2Th +7 27 Receiver QPSK System 1 Ave 0 DE BETOFPR(3), 17 TORN (10) SQPSK (1) b₁ P/S br There is a system for modulating data QPSK and OQPSK. Suppose that data of [1000111001] is input at a bit rate of Rb = 1 kbps. (a) Find the phase of the b_o(t) and b_e(t) and the QPSK modulated output signal in 1 msec intervals in a QPSK system with the structure shown in Figure. Indicate where the 180° phase transition occurs. (b) Repeat the process in (a) for the OQPSK system. You ID Tb b(t) SQPSK(t) B,(1) S/P T, 2T, b.(t) s -90° Acos2xfet 0 Asin2x/ Asin2xfet 2T Acos2xfet dt 90° 27, a transmitter di $BPSKI(1) #g(t) SBPSK2(1) 9 (1) X 2Th +7 27 Receiver QPSK System 1 Ave 0 DE BETOFPR(3), 17 TORN (10) SQPSK (1) b₁ P/S br There is a system for modulating data QPSK and OQPSK. Suppose that data of [1000111001] is input at a bit rate of Rb = 1 kbps. (a) Find the phase of the b_o(t) and b_e(t) and the QPSK modulated output signal in 1 msec intervals in a QPSK system with the structure shown in Figure. Indicate where the 180° phase transition occurs. (b) Repeat the process in (a) for the OQPSK system. You ID Tb b(t) SQPSK(t) B,(1) S/P T, 2T, b.(t) s -90° Acos2xfet 0 Asin2x/ Asin2xfet 2T Acos2xfet dt 90° 27, a transmitter di $BPSKI(1) #g(t) SBPSK2(1) 9 (1) X 2Th +7 27 Receiver QPSK System 1 Ave 0 DE BETOFPR(3), 17 TORN (10) SQPSK (1) b₁ P/S br