학술논문
A comparison of Ultra-Sensitive Coherent Detection (USCD) and heterodyne detection for a wind sensing application
Document Type
Report
Source
NASA. Langley Research Center, 16th International Laser Radar Conference, Part 2.
Subject
Language
English
Abstract
Ultra-Sensitive Coherent Detection (USCT) and conventional heterodyne detection methods were evaluated for use as a space-borne wind sensing system. For this study, we assume that the wind sensing system would be available by the year 2015. Consequently, laser systems and detectors more advanced than those under consideration for near term programs could be included. Three laser candidates under evaluation are Nd-YAG at 1.06 microns, Ho-YAG at 2.1 microns, and CO2 at 9.11 microns. Both heterodyne and USCD detection methods were included. The primary stress is on the optimization of weight and power consumption of the wind sensor portion of the satellite system.