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Proceedings Paper

An Optical Radar Receiver Using Programmed Sensitivity Time Control
Author(s): Howard D. Krumboltz; Vincent M. Contarino
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Paper Abstract

The return signals from a pulsed air/underwater laser radar system can have dynamic ranges that exceed the capabilities of normal photomultiplier tubes, creating spurious signals. By actively controlling the grid voltage of a photomultiplier tube, the usable dynamic range of a receiver can be extended. Careful active control of the grid voltage on an ITT 6 stage 4084 photomultiplier has resulted in gain changes in excess of 50 dB in a time frame of several hundred nanoseconds. This programmed STC (sensitivity time control) has allowed the recording of enhanced signal returns covering larger dynamic ranges than previously possible, without spurious signals resulting from multiplier overload.

Paper Details

Date Published: 10 November 1978
PDF: 5 pages
Proc. SPIE 0160, Ocean Optics V, (10 November 1978); doi: 10.1117/12.956864
Show Author Affiliations
Howard D. Krumboltz, Naval Air Development Center (United States)
Vincent M. Contarino, Naval Air Development Center (United States)

Published in SPIE Proceedings Vol. 0160:
Ocean Optics V
Matthew B. White; Robert Stevenson, Editor(s)

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