Abstract
The MAPM, an acronym for Mobile Atmospheric Pollutant Mapping System, is a CO2 DIAL lidar using heterodyne detection. The MAPM is distinguished from previous CO2 DIAL lidar systems in that it employs a pair of CO2 lasers with PRFs up to 150 Hz which should increase the measurement accuracy and reduce the measurement time required. The MAPM is mounted in a semitrailer and has a scan mirror above the roof. We discuss the system design, as well as results of demonstration measurements on organic solvents in a sample chamber and system performance characteristics, with an emphasis on factors limiting performance such as speckle, aerosol spectral properties, and interfering molecular species.
© 1986 Optical Society of America
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