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Title: Range imaging laser radar

Abstract

A laser source is operated continuously and modulated periodically (typically sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream. 2 figs.

Inventors:
Issue Date:
OSTI Identifier:
7164557
Patent Number(s):
4935616 A
Application Number:
PPN: US 7-392878
Assignee:
Dept. of Energy, Washington, DC (United States) SNL; EDB-94-118377
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 14 Aug 1989
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; RADAR; DESIGN; CHARGE-COUPLED DEVICES; LASER RADIATION; MODULATION; RADIATION DETECTORS; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; MEASURING INSTRUMENTS; RADIATIONS; RANGE FINDERS; SEMICONDUCTOR DEVICES; 440800* - Miscellaneous Instrumentation- (1990-)

Citation Formats

Scott, M.W. Range imaging laser radar. United States: N. p., 1990. Web.
Scott, M.W. Range imaging laser radar. United States.
Scott, M.W. Tue . "Range imaging laser radar". United States.
@article{osti_7164557,
title = {Range imaging laser radar},
author = {Scott, M.W.},
abstractNote = {A laser source is operated continuously and modulated periodically (typically sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {6}
}