Engineering topics
Publications and source records attributed to Lucy, R. F..
Optical communications experiments for quantitative data at 6328 A on system fading due to scintillation and atmospheric turbulence effects on coherent propagation at 10.6 micron
Laser transmitter and optical superheterodyne receiver performance tests at 6328 A, demonstrating aperture size effect and noncoherent operation superiority
Typical laser systems now available for atmospheric probing are summarized. Experiments comparing coherent and incoherent receiving techniques are described and typical performance data presented.
Diagnostic optical communication experiments comparing noncoherent and coherent detection techniques, discussing atmospheric turbulence effects on signal fading
Optical communication experiments to compare coherent and noncoherent optical detection fading characteristics in different weather conditions, using laser transmitter and optical superheterodyne receiver
Optical superheterodyne receiver uses a laser coupled to a frequency translator to supply both the incident signal and local oscillator signal and thus permit reception of amplitude modulated video bandwidth signals through the atmosphere. This receiver is useful in scientific propagation experiments, tracking experiments, and communication experiments.
Precision laser tracker capable of tracking a low acceleration target to an accuracy of about 20 microradians rms is being constructed and tested. This laser tracking has the advantage of discriminating against other optical sources and the capability of simultaneously measuring range.
Sensitivity and tracking capabilities of precision laser automatic tracking system
Optical superheterodyne receiver - laser system, Doppler frequency tracking, and optical tracking