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http://hdl.handle.net/11375/14309
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DC Field | Value | Language |
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dc.contributor.advisor | Taylor, D. P. | en_US |
dc.contributor.author | Weaver, Francis Carl | en_US |
dc.date.accessioned | 2014-06-18T17:07:03Z | - |
dc.date.available | 2014-06-18T17:07:03Z | - |
dc.date.created | 2009-07-30 | en_US |
dc.date.issued | 1981-11 | en_US |
dc.identifier.other | opendissertations/95 | en_US |
dc.identifier.other | 1519 | en_US |
dc.identifier.other | 916858 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/14309 | - |
dc.description.abstract | <p>Phase-locked loops occasionally exhibit prolonged phase transients and are therefore not suitable for carrier recovery applications in time division multiple access (TDMA) systems. Instead, designers have, in several cases, used a single-tuned high Q filter in combination with an automatic frequency control. A non-linear differential equation model for such a system, called a "frequency locked loop" (FLL) is solved by computer to obtain the transient responses. The solutions obtained indicate that the FLL has fast and reliable carrier phase acquisition time compared to a phase-locked loop (PLL). Also, since the non-linear responses agree well with linear model responses, an equation based on the linear model is developed to determine worst-case acquisition time. It is shown that a limiter preceeding the single-tuned tank does not directly affect acquisition performance and will improve noise performance of the FLL. With a limiter, the FLL block diagram is equivalent to an FM feedback demodulator (FMFB) on which there is a large amount of existing literature. Using results from the literature, it is demonstrated how the FMFB will perform in the presence of Gaussian noise. Finally, a design procedure is recommended which takes into account the tradeoff between noise performance and acquisition/tracking ability and attempts to minimize the acquisition time for a given level of Gaussian noise.</p> | en_US |
dc.subject | Electrical and Electronics | en_US |
dc.subject | Electrical and Electronics | en_US |
dc.title | An Analysis of a Fast Carrier Recovery System for TDMA | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Electrical Engineering | en_US |
dc.description.degree | Master of Engineering (ME) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 1.27 MB | Adobe PDF | View/Open |
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