Development principles of frequency-modulated CW-ladar for remote detection of atmospheric trace constituents

Ravil R. Agishev; Rafael K. Sagdiev; Barry Gross; Fred Moshary; Alexander Gilerson; Samir Ahmed; Adolfo Comeron

doi:10.1117/12.560102

15 September 2004 Development principles of frequency-modulated CW-ladar for remote detection of atmospheric trace constituents

Ravil R. Agishev, Rafael K. Sagdiev, Barry Gross, Fred Moshary, Alexander Gilerson, Samir Ahmed, Adolfo Comeron

Author Affiliations +

Proceedings Volume 5547, Remote Sensing in Atmospheric Pollution Monitoring and Control; (2004) https://doi.org/10.1117/12.560102
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

In this paper we present a general methodology for a frequency-modulated ladar/lidar (CW-FM-ladar/lidar) concept based on principles of both CW-FM-range-finding and modulation spectroscopy, together with modern techniques of optical signal transmission using tunable laser diodes, signal detection and heterodyne processing. We develop a mathematical description of trace gas detection using CW-LD ladar developing the relationship between the heterodyne echo-signal amplitudes and frequencies and trace gas concentration for each range. In particular, precise range and gas retrieval resolution limits based on the transmitting signal modulation and absorption line parameters are obtained.

Citation Download Citation

Ravil R. Agishev, Rafael K. Sagdiev, Barry Gross, Fred Moshary, Alexander Gilerson, Samir Ahmed, and Adolfo Comeron "Development principles of frequency-modulated CW-ladar for remote detection of atmospheric trace constituents", Proc. SPIE 5547, Remote Sensing in Atmospheric Pollution Monitoring and Control, (15 September 2004); https://doi.org/10.1117/12.560102

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