What question did this study set out to answer?

To evaluate frequency detector architectures that achieve phase-locked loop acquisition despite narrow loop bandwidths and large initial frequency offsets.

September 1, 1979IRE Transactions on Communications Systems

Frequency Detectors for PLL Acquisition in Timing and Carrier Recovery

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Authors

DMDavid G. MesserschmittUniversity of Arizona

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Implication

Circuit design study demonstrates dual frequency detector architectures enable rapid PLL acquisition across large frequency offsets, suggesting reliable synchronization with reduced jitter.

Key Points

To evaluate frequency detector architectures that achieve phase-locked loop acquisition despite narrow loop bandwidths and large initial frequency offsets.
Integrated auxiliary frequency detectors—including a quadricorrelator and a newly introduced rotational frequency detector—alongside standard phase detectors.
Evaluated lock acquisition performance under narrow bandwidth constraints, substantial frequency offsets, and varying signal-to-noise ratio regimes.
Both frequency detectors facilitated successful acquisition with narrow loop bandwidths and large initial frequency offsets, eliminating the need for sweeping or high-stability oscillators.
The rotational frequency detector achieved effective acquisition using simpler circuit implementation than the quadricorrelator, functioning reliably at lower frequencies and higher signal-to-noise ratios.

Cite This Study

David G. Messerschmitt (1979) studied this question.

synapsesocial.com/papers/6a830cd6687d8bb80798fb79 https://doi.org/10.1109/tcom.1979.1094553

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Implication

Circuit design study demonstrates dual frequency detector architectures enable rapid PLL acquisition across large frequency offsets, suggesting reliable synchronization with reduced jitter.

Frequency Detectors for PLL Acquisition in Timing and Carrier Recovery

Discussion

Member takes

Implication

Key Points

Cite This Study

Frequency Detectors for PLL Acquisition in Timing and Carrier Recovery

Discussion

Member takes

Implication

Key Points

Cite This Study

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