[2015Book]A Digital Phase Locked Loop based Signal and Symbol Recovery

龚_利90 · 发表于 2015-3-17 01:27:08

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A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel[2015 Springer]
Basab Bijoy Purkayastha, Kandarpa Kumar Sarma
The book reports two approaches of implementation of the essential components of a Digital Phase Locked Loop based system for dealing with wireless channels showing Nakagami-m fading. It is mostly observed in mobile communication. In the first approach, the structure of a Digital phase locked loop (DPLL) based on Zero Crossing (ZC) algorithm is proposed. In a modified form, the structure of a DPLL based systems for dealing with Nakagami-m fading based on Least Square Polynomial Fitting Filter is proposed, which operates at moderate sampling frequencies. A sixth order Least Square Polynomial Fitting (LSPF) block and Roots Approximator (RA) for better phase-frequency detection has been implemented as a replacement of Phase Frequency Detector (PFD) and Loop Filter (LF) of a traditional DPLL, which has helped to attain optimum performance of DPLL. The results of simulation of the proposed DPLL with Nakagami-m fading and QPSK modulation is discussed in detail which shows that the proposed method provides better performance than existing systems of similar type.

Content:
Front Matter....Pages i-xxi
Introduction....Pages 1-29
Transmitter Receiver Techniques....Pages 31-47
Modulation Techniques and Signal Processing....Pages 49-87
Basic Considerations of PLL and Its Types....Pages 89-101
Digital Phase-Locked Loop....Pages 103-126
Synchronization....Pages 127-151
A Zero-Crossing Algorithm-Based Digital Phase-Locked Loop....Pages 153-162
Least Square Polynomial Fitting-Based Digital Phase-Locked Loop....Pages 163-172
A DPLL-Based Recovery System for Nakagami-m Fading Channel....Pages 173-185
Coding Assisted Carrier and Symbol Recovery Using DPLL....Pages 187-195
Carrier Phase Detection of Rayleigh and Rician Faded Signals Using Digital Phase-Locked Loop....Pages 197-217
DPLL-Based Square Loop for Carrier Synchronization Over Fading Channel....Pages 219-231
Conclusions and Future Direction....Pages 233-242
Back Matter....Pages 243-244

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