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DIGITAL COMMUNICATION SYSTEM 0.5 (15 pts) Write binary Differential PSK (DPSK) encoded data for the following...
Analog and digital communication systems ECE 134 Spring 2019 (Final Exam) Question 7: (1o points) Assume you have a k stream of binary information bits, k-111001. Encode those information bits and decode them using Differential PSK encoding scheme. You may use an encoding and decoding block diagram in your answer as well as show on a tabular form the Differential Encoding and Detection of the Binary DPSK. ECE 134 Spring 2019 (Final Exam) Question 7: (1o points) Assume you have...
(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...
Let us consider the binary digital communication system in which bit 1 is represented by the waveform Acos(ωt) of bit duration T, where ω is the carrier radial frequency and A is the constant amplitude. On the hand, the bit 0 is represented by the following waveform instead (A/10)cos(ωt). During the transmission the channel has introduced the uniform random phase shift Φ and transmitted waveform is affected by zero-mean white Gaussian noise of variance σ2. To demodulate, we perform the...