# Phase-locked loops

@article{Gupta1975PhaselockedL, title={Phase-locked loops}, author={S.C. Gupta}, journal={Proceedings of the IEEE}, year={1975}, volume={63}, pages={291-306} }

An attempt to systematically outline the work done in the area of phase-locked loops which are now used in modern communication system design is presented. The analog phase-locked loops are well documented in several books but discrete, analog-digital, and digital. phase-locked loop work is scattered. Apart from discussing the various analysis, design, and application aspects of phase-locked loops, a number of references are given in the bibliography.

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#### References

SHOWING 1-10 OF 141 REFERENCES

On Optimum Digital Phase-Locked Loops

- Computer Science
- 1968

The design procedure of optimum digital filters for analog-digital phase-locked loops is given and it is shown that the optimum digitalanalog phase- Locked loop is not the discrete version of the optimum continuous phase-lock loop. Expand

Gated Phase-Locked Loop Study

- Engineering
- IEEE Transactions on Aerospace and Electronic Systems
- 1971

The objectives of this paper are threefold. The first is to obtain a sampled data model of a gated phase-locked loop. Data from measurements made on an actual loop constructed in the laboratory are… Expand

An all digital phase locked loop for FM demodulation.

- Mathematics
- 1972

A phase-locked loop designed with all-digital circuitry which avoids certain problems, and a digital voltage controlled oscillator algorithm are described. The system operates synchronously and… Expand

Digital Phase Control Techniques

- Computer Science
- 1960

It is concluded that over most of the range of operation the behavior of the digital phase-locked loop is nearly identical to the corresponding analog phase- Locked loop, but that in addition, certain possible advantages may occur as a result of the digitization. Expand

A Class of All Digital Phase Locked Loops: Modeling and Analysis

- Computer Science
- IEEE Transactions on Industrial Electronics and Control Instrumentation
- 1973

An all digital phase locked loop which tracks the phase of the incoming signal once per carrier cycle is proposed and the lock range for the general model is derived. Expand

Range Extension of a Phase-Locked Loop

- Computer Science
- IEEE Trans. Commun.
- 1973

An approximate method of estimating the locking range and the locking time of the HLL in the noisy environment has been presented and the experimental results in partial support of the conclusions of the analysis are given. Expand

Response of an All Digital Phase-Locked Loop

- Computer Science
- IEEE Trans. Commun.
- 1974

It is found, using a computer simulation of a noise spike, and verified experimentally, that of these configurations the second-order system is optimum from the standpoint of threshold extension. Expand

On the Equivalence in Performance of Several Phase-Locked Loop Configurations

- Computer Science
- 1970

If the loop parameters are defined appropriately, then the dynamic noise performance of the loop is identically equivalent to that of a standard phase-locked loop or a double-superheterodyne tracking loop using a noise-free external reference generator. Expand

A Model Distribution for the Phase Error in Second-Order Phase-Locked Loops

- Computer Science, Mathematics
- 1966

Compared to the actual measurements of the second-order loop performance, it is shown that the model distribution provides excellent agreement over the useful range of most phase-locked receivers. Expand

Phase-Locked Loop Pull-In Range

- Engineering
- 1968

In this paper the derivation of a general equation for the pull-in range of a phase-locked loop is outlined. The equation is applied to a typical third-order loop, and algebraic results are derived… Expand