"Design of a Symbol Rotation Circuit for C.R.T. Displays Using Analog M" by Lawrence Wachowiak
 

Date of Award

5-1970

Degree Type

Master's Essay - Restricted

Degree Name

Master of Science (MS)

Department

Electrical and Computer Engineering

First Advisor

Robert Lade

Abstract

In the new generation of military aircraft, cathode ray tube displays are used to present to the pilot the situation of the plane, some of the symbology that must be displayed are alphanumeric characters, geometric figures, and special effects like an artificial horizon, pitch ladder, runway in the sky, etc. Some of the symbology remain stationary during the display cycle. Others must be translated (i.e. moved in the vertical and/or horizontal positions) and finally others must be rotated (i.e. moved some given angle at a constant radius). Symbol rotation of C.R.T. displays has been a difficult problem until the advent of the high frequency analog multiplier. The objectives of this paper are to present the reasoning behind the selection of the analog multiplier, present the design details used to determine the circuit parameters, and from the design equations estimate the worst case accuracy of the circuit.

Comments

This report is the design report required by plan B for the author's Master of Science Degree in Electric al Engineering at Marquette University, Milwaukee Wisconsin.

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