Telecommunication Systems

Catalog description

Signal representation in time and frequency domains, concepts of noise, impedance matching, mixing, heterodyning, filters, tuned amplifiers, oscillators and voltage controlled oscillators, phased-lock-loop, analog and digital modulation in amplitude, frequency and phase and multiple user communication systems. Other topics include transmission lines, electromagnetic wave propagation in space, and antenna systems. Typically offered Fall. Prerequisite(s): ECET 15401 FOR LEVEL UG WITH MIN. GRADE OF D- Course Learning Outcomes 1. Describe the essential elements of a generic block diagram of a communications system, and label the various sub-systems while explaining briefly the function of each element and its operation. The diagram might include the following blocks: the information source, the input transducer (e.g. a microphone), the modulator, the output power amplifier (transmitter), the communications channel media (e.g. free space, cable, fiber, etc.), the de-modulator and the output transducer (e.g. a speaker). (ABET SO 1,4) 2. Classify various waveforms of periodic and non-periodic signals into one or more of three groups. The first classification is to categorize signals as either periodic or non-periodic. The second classification is to identify signals as deterministic or random. The third classification is to categorize the signals as power signals or energy signals. (ABET SO 1,2) 3. Develop the Fourier series of the signal and plot its spectrum for a significant number of harmonics when given the time domain equation for a periodic signal. Characterize the spectra of signals and noise. (ABET SO 1,2) 4. Describe several types of noise in communication systems, calculate the noise power, signal-to noise ratio, noise figure, noise temperature for single stage and cascaded stages. . (ABET SO 1,2,4) 5. Describe basic radio frequency circuits including radio-frequency amplifiers, oscillators, mixer, phase-locked loop, and frequency synthesizers. (ABET SO 1,2,4) 6. Understand and show the operating principles of amplitude modulation (AM) and angle modulation including frequency modulation (FM) and phase modulation. Contrast their respective spectra, their advantages and disadvantages with respect to power, required bandwidths, noise considerations, ease of Implementation and applications. (ABET SO 1,2,3,4) 7. Understand and analyze operations and transmitter and receiver circuits. Explain requirements and specifications for their particular applications. (ABET SO 1,2,3,4) 8. Describe concepts of pulse code modulation (PCM) and multiplexing. Understand the operations of telephone systems. (ABET SO 1,2,3,4) View Class Schedule