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receiving efficiency of monostatic pulsed coherent lidars. i - theory. ii - applicationsPulsed coherent radars' receiving efficiency, eta, is presently investigated as a function of range z on the basis of a theory which relates eta(z) to both the transmitted laser intensity and the point-source receiving efficiency; this efficiency is calculated by a backward method employing the back-propagated local oscillator (BPLO) approach. The theory is applied to the ideal case, in order to study system optimization when both the transmitted and the BPLO fields at the antenna are Gaussian. In the second part of this work, eta(z) is calculated for various conditions of the NOAA/ERL Wave Propagation Laboratory CO2 Doppler lidar; the sensitivity of eta(z) to transmitted laser beam quality, telescope focal setting, telescope power, scanner astigmatism, and system misalignment.
Document ID
19910026992
Document Type
Reprint (Version printed in journal)
Authors
Zhao, Yanzeng
(Cooperative Institute for Research in Environmental Sciences Boulder, CO, United States)
Post, Madison J.
(Colorado Univ. Boulder, CO, United States)
Hardesty, Michael
(NOAA, Wave Propagation Laboratory, Boulder CO, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1990
Publication Information
Publication: Applied Optics
Volume: 29
ISSN: 0003-6935
Subject Category
LASERS AND MASERS
Funding Number(s)
CONTRACT_GRANT: NASA ORDER H-98023-B
Distribution Limits
Public
Copyright
Other