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Controlled-root formulation for digital phase-locked loops
Abstract
In a new formulation for digital phase-locked loops, loop-filter constants are determined from loop roots that can each be selectively placed in the s-plane on the basis of a new set of parameters, each with single and direct physical meaning in terms of loop noise band, width root-specific decay rate, or root-specific damping. Loops of first to fourth order are treated in the continuous-update approximation (B/sub L/T/spl rarr/0) and in a discrete-update formulation with arbitrary B/sub L/T. Deficiencies of the continuous-update approximation in large-B/sub L/T applications are avoided in the new discrete-update formulation. A new method for direct, transient-free acquisition with third- and fourth-order loops can improve the versatility and reliability of acquisition with such loops.>
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Cited by
Unmanned Aircraft Capture and Control Via GPS Spoofing
Kerns, A. J., Shepard, D. P., Bhatti, J. A., & Humphreys, T. E. (2014) · Journal of Field Robotics · doi:10.1002/rob.21513 · Cited by 688
Conker, R. S., El‐Arini, M. B., Hegarty, C. J., & Hsiao, T. (2003) · Radio Science · doi:10.1029/2000rs002604 · Cited by 295
Metadata
- Authors
- Stephens, S. A., & Thomas, J. B.
- Venue
- IEEE Transactions on Aerospace and Electronic Systems
- Published
- 1995-01
- Volume
- 31
- Issue
- 1
- Pages
- 78-95
- ISSN
- 0018-9251 (ISSN-L)
- OpenAlex
- W2171956285
- Cited by
- 165
- References
- 0
- FWCI
- 1.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Controlled-root formulation for digital phase-locked loops. https://app.cochat.ai/papers/10.1109/7.366295
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- Stephens, S. A., & Thomas, J. B. (1995). Controlled-root formulation for digital phase-locked loops. IEEE Transactions on Aerospace and Electronic Systems. https://doi.org/10.1109/7.366295
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