Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"timing recovery"”.
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Low-complexity structures for digital symbol timing recovery
Symbol timing recovery (STR) is required in every digital synchronous communications receiver, since the output of the demodulator must be sampled periodically at symbol rate, at the precise sampling time instants in order to correctly recover the transmitted data. The major objective of this …
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Acquisition behavior for a HDD interpolative timing recovery system
Thesis (S.B. and S.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, June 1999.
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Low-jitter symbol timing recovery for M-ary QAM and PAM signals
This thesis focuses on low-jitter symbol timing recovery schemes applicable to M-ary QAM and PAM signals. Franks and Bubrowski introduced highpass prefiltering and symmetric bandpass post-filtering for jitter-free operation of a symbol timing recovery scheme using a squarer for binary signaling. We …
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Bit error rate simulation enhancement and outage prediction in mobile communication systems
… in simulations. Implementation of receiver timing jitter and timing recovery models, as well as modifications of the channel generation (two-ray model) and conversion (imported channel), are among the enhancements that have been added. The bit error rate and outage performance of the …
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A study of multilevel partial response signalling for transmission in a basic supergroup bandwidth
… A pilot tone scheme is used to facilitate symbol timing recovery at the demodulator. A sixth order Butterworth low pass filter approximates the ideal raised-cosine Nyquist channel. A theoretical discussion on impairments caused by deviation from this channel is given. Since the experimental system …
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Modeling and Analysis of Synchronization Schemes for the TDMA Based Satellite Communication System
… the carrier frequency offset (CFO) or symbol timing error (STE) that may result in difficulty of signal detection and estimation. Comparing with SC systems, OFDM systems are more sensitive to synchronization errors, because these errors will lead to inter-symbol interference (ISI) and …
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FPGA-based DOCSIS upstream demodulation
… In particular, algorithms for frequency recovery and equalization are developed. The many data-aided feedforward frequency offset estimators analyzed in the literature have not considered intersymbol interference (ISI) caused by micro-reflections in the channel. It is shown in this thesis …
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Wavelet based design of digital multichannel communications systems
… Particular attention has been devoted to the timing recovery problem in multichannel communication schemes, exploiting the timing information of the different subchannels to improve the error variance in estimation of the sampling instant leading to a reduction of the adjacent channels …
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Rate-Adaptive Runlength Limited Encoding for High-Speed Infrared Communication
… feasibly implemented on systems with non-ideal timing and digital synchronization.