JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{zagel:icalepcs1991-s12fc01,
author = {J.R. Zagel and B.E. Chase},
title = {{Feedback – Closing the Loop Digitall}},
% booktitle = {Proc. ICALEPCS'91},
booktitle = {Proc. 3rd Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'91)},
eventdate = {1991-11-11/1991-11-15},
pages = {408--413},
paper = {S12FC01},
language = {english},
keywords = {controls, feedback, LLRF, cavity, software},
venue = {Tsukuba, Japan},
series = {International Conference on Accelerator and Large Experimental Physics Control Systems},
number = {3},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {12},
year = {1992},
issn = {2226-0358},
isbn = {978-3-95450-254-7},
doi = {10.18429/JACoW-ICALEPCS1991-S12FC01},
url = {https://jacow.org/icalepcs1991/papers/s12fc01.pdf},
abstract = {{Many feedback and feedforward systems are now using microprocessors within the loop. We describe the wide range of possibilities and problems that arise. We also propose some ideas for analysis and testing, including examples of motion control in the Flying Wire systems in Main Ring and Tevatron and Low Level RF control now being built for the Fermilab Linac upgrade. The standard techniques used to design and analyze analog feedback systems can also be applied to digital systems. It is desirable to consider frequency response, maximum tolerable error, and stability questions for systems controlled by processors. In modern digital systems a considerable amount of software not only replaces analog circuit functions but also allows additional features to be built into the system.}},
}