<p>A feasibility study has been performed on a 4 bits/s/Hz digital radio system. This system utilizes a 4-level quadrature amplitude modulation scheme with Duobinary filtering to achieve such high bandwidth efficiency. The error rate performance of such systems is evaluated. A repeater structure including the transmitter and the receiver of such systems is developed and analyzed. A decision directed carrier recovery loop is presented and analyzed using stochastic techniques. Expressions for the effective phase detector characteristic and the steady state phase error probability density function are derived. A symbol timing recovery structure is also presented and exhaustive simulations have been performed to analyze the performance of the timing recovery structure.</p> / Master of Engineering (ME)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/7182 |
| Date | 10 1900 |
| Creators | Yeung, Sammy Ka-Sing |
| Contributors | Taylor, D. P., Electrical Engineering |
| Source Sets | McMaster University |
| Detected Language | English |
| Type | thesis |
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