An Optical Radar Receiver Using Programmed Sensitivity Time Control

Howard D. Krumboltz; Vincent M. Contarino

doi:10.1117/12.956864

10 November 1978 An Optical Radar Receiver Using Programmed Sensitivity Time Control

Howard D. Krumboltz, Vincent M. Contarino

Proceedings Volume 0160, Ocean Optics V; (1978) https://doi.org/10.1117/12.956864
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

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.

Citation Download Citation

Howard D. Krumboltz and Vincent M. Contarino "An Optical Radar Receiver Using Programmed Sensitivity Time Control", Proc. SPIE 0160, Ocean Optics V, (10 November 1978); https://doi.org/10.1117/12.956864

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