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Lab demonstration of the hybrid doppler wind lidar (hdwl) transceiver
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kavaya, Michael Marx, Catherine T. Dogoda, Peter Faust, Ed Gentry, Bruce Jordan, Patrick |
| Copyright Year | 2013 |
| Description | The recommended design approach for the 3D Tropospheric Winds mission is a hybrid Doppler lidar which combines the best elements of both a coherent aerosol Doppler lidar operating at 2 microns and a direct detection molecular Doppler lidar operating at 0.355 microns. In support of the mission, we built a novel, compact, light-weighted multi-field of view transceiver where multiple telescopes are used to cover the required four fields of view. A small mechanism sequentially selects both the "transmit" and "receive" fields of view. The four fields are combined to stimulate both the 0.355 micron receiver and the 2 micron receiver. This version is scaled (0.2 m diameter aperture) from the space-based version but still demonstrates the feasibility of the hybrid approach. The primary mirrors were conventionally light-weighted and coated with dielectric, high reflectivity coatings with high laser damage thresholds at both 2 microns and 0.355 microns. The mechanical structure and mounts were fabricated from composites to achieve dimensional stability while significantly reducing the mass. In the laboratory, we demonstrated the system level functionality at 0.355 microns and at 2 microns, raising the Technology Readiness Level (TRL) from 2 to 4. |
| File Size | 687074 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20160000782 |
| Archival Resource Key | ark:/13960/t9g49px6p |
| Language | English |
| Publisher Date | 2013-08-25 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Transmitter Receivers Yield Point Troposphere Receivers Aerosols Field of View Doppler Radar Dimensional Stability Optical Radar Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
