(15 points) The following binary sequence b = [bk]K-1 įs applied to the input of a DPSK (Diffe re...
(15 points) The following binary sequence b = [bk]K-1 įs applied to the input of a DPSK (Diffe rential Phase Shift Keying) modulator, where the initial differentially encoded symbol uestion I b -1 1 0 1 0 1 1 001 0 1 a) Give the corresponding differentially encoded binary sequence d dk.I b) Give the corresponding phase sequence ф [Ok]k-1 c) Draw the resulting DSPK signal waveform. For this assume that the carrier fre- quency fe- where T, is the bit duration Question 2: (15 points) The antenna input terminals of an FM receiver have a 300 Ω impedance. a) If the RMS voltage measured at these terminals is V?ms-65 microvolts, what is the input signal power, P, (en Watts)? b) What is the corresponding PaBm in dBm? c) What would be the RMS input voltage, if we were measuring the same input power but for an antenna input impedance of 50 2?
(15 points) The following binary sequence b = [bk]K-1 įs applied to the input of a DPSK (Diffe rential Phase Shift Keying) modulator, where the initial differentially encoded symbol uestion I b -1 1 0 1 0 1 1 001 0 1 a) Give the corresponding differentially encoded binary sequence d dk.I b) Give the corresponding phase sequence ф [Ok]k-1 c) Draw the resulting DSPK signal waveform. For this assume that the carrier fre- quency fe- where T, is the bit duration Question 2: (15 points) The antenna input terminals of an FM receiver have a 300 Ω impedance. a) If the RMS voltage measured at these terminals is V?ms-65 microvolts, what is the input signal power, P, (en Watts)? b) What is the corresponding PaBm in dBm? c) What would be the RMS input voltage, if we were measuring the same input power but for an antenna input impedance of 50 2?