Journal
JOURNAL OF APPLIED REMOTE SENSING
Volume 6, Issue -, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JRS.6.063546
Keywords
lidar; optomechanical design; signal-to-noise ratio; clouds
Funding
- DENA Desarrollos, S.L.
- MICINN (Spanish Ministry of Science and Innovation)
- FEDER (European Regional Development Funds) funds under the RD projects [TEC2009-09106, TEC2006-07850/TCM, AGL2010-22304-C04-03]
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This paper presents parameter design methodology and related optomechanical engineering of a 905-nm diode-laser biaxial, eye-safe lidar ceilometer prototype for cloud-height monitoring. Starting with a brief review of the state-of-the-art ceilometer technology, acceptable parameter ranges are identified for the key system parts. Parameter tuning is achieved by imposing goal criteria on the simulated signal-to-noise ratio and laser-telescope overlap factor. The system is based on a low-cost pulsed semiconductor laser, low-cost Fresnel-lens telescope, a low-noise-equivalent power avalanche-photodiode optoelectronic receiver, and collimating/focusing adjustable parts. Finally, preliminary test measurements are presented. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JRS.6.063546]
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