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- J. R. Ragazzini, Lotfi A. Zadeh
- Electrical Engineering
- 1952

THERE IS AN important class of feedback control systems known as sampled-data systems in which the data at one or more points consist of trains of pulses or sequences of numbers. Such systems may be… (More)

- P. Sarachik, J. R. Ragazzini
- Transactions of the American Institute of…
- 1957

THERE is a class of control systems whose objective is to control precisely and maintain a relationship between several dimensions. A simple example of this type of system is the contour-cutting… (More)

- J. R. Ragazzini, R.H. Randall, F. S. Russell
- Proceedings of the IRE
- 1947

This paper describes a method for obtaining an engineering solution for integrodifferential equations of physical systems using an electronic system. The components consist of standard plug-in… (More)

- Jack Sklansky, J. R. Ragazzini
- Transactions of the American Institute of…
- 1955

The system error in sampled-data feedback systems resulting from the application of a test function is an important design parameter. The “system error” is defined as the difference between the… (More)

- J. R. Ragazzini
- Proceedings of the IRE
- 1942

A mathematical analysis of the effect which fluctuation voltages have on the operation of a linear detector is presented. Expressions for the audio-frequency noise spectra and the root-mean-square… (More)

- Jack Sklansky, J. R. Ragazzini
- Electrical Engineering
- 1955

THE system error ε(t) in a sampled-data feedback system is an important design parameter. It is defined as the difference between the actual output c(t) and the desired output c<inf>d</inf>(t), i.e.,… (More)

- A. R. Bergen, J. R. Ragazzini
- Electrical Engineering
- 1954

FEEDBACK CONTROL SYSTEMS in which the data at one or more points are in the form of pulse trains or sequences of numbers are known as sampled-data feedback control systems. These systems are most… (More)

- Lotfi A. Zadeh, J. R. Ragazzini
- Proceedings of the IRE
- 1952

A detection system usually contains a predetection filter whose function is to enhance the strength of the signal relative to that of the noise. An optimum predetection filter is defined in this… (More)

- J. R. Ragazzini, A. R. Bergen
- Proceedings of the IRE
- 1954

The design of a linear system often takes the form of its response in the time domain to a test function. Computation of such response, particularly in the case of feedback systems, is usually… (More)

- J. R. Ragazzini, S. S. L. Chang
- Proceedings of the IRE
- 1962

Early investigators in the field of communications first realized that the presence of unwanted random noise was an important factor following the discovery that the maximum gain of an amplifier was… (More)