Pennsylvania State University 3 credits EE
EE 460 is an elective course in the electrical engineering curricula that provides detailed performance analysis of communications systems first studied in introductory communications courses such as EE 360 or EE 461. The course begins with a review of topics in linear system theory, communication theory, and probability/random processes. Following the review of this important background material, this course studies the behavior of communication systems in the presence of noise. First, the behavior of analog communication systems in the presence of additive white Gaussian noise (AWGN) is analyzed. As a benchmark, signal-to-noise ratio is derived for a base band system. This is followed by a performance assessment of amplitude modulated and frequency modulated systems and comparison is made to the base band system performance. Concepts of optimum pre-and de-emphasis systems are explained. Next, behavior of digital communication systems in AWGN is studied. This includes optimum threshold detection and general analysis of optimum binary receivers. Performance of carrier modulation systems ASK, FSK, PSK and DPSK is derived in terms of average bit error rate (BER) as a function of bit-energy-to-noise density height. M-ary communications systems are analyzed. Synchronization issues are discussed. This is followed by the theory of optimum signal detection; geometrical representation of signals and signal spaces, Gaussian processes, optimum receiver and equivalent signal sets are illustrated by several examples. BER performance analysis of complex digital modulated systems is demonstrated, using the developed signal space concepts.
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