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Adaptive optics in coherent lidar wind measurements: a feasibility study
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Leland, Robert P. |
| Copyright Year | 1991 |
| Description | Laser Doppler radar (lidar) is widely used for remote sensing of wind velocities. Usable wavelengths for the laser are limited by the effects of atmospheric turbulence. An adaptive optical system is proposed to compensate for turbulence effects on signal power. The feasibility of an adaptive system is considered in light of the effects of speckle from the aerosol target. It is concluded that adaptive optics is a promising technique for improving the performance of a 2 micron lidar wind measurement system. The chief technical challenges are a laser that will give the required output and pulse repetition rate, a combined Hartmann sensor and heterodyne detector, and a suitable reconstruction algorithm. |
| File Size | 293469 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920006654 |
| Archival Resource Key | ark:/13960/t3tt9hx7f |
| Language | English |
| Publisher Date | 1991-10-01 |
| Access Restriction | Open |
| Subject Keyword | Meteorology And Climatology Meteorological Radar Pulse Repetition Rate Wind Velocity Feasibility Analysis Targets Remote Sensing Algorithms Atmospheric Turbulence Wind Measurement Aerosols Turbulence Effects Adaptive Optics Doppler Radar Optical Radar Wind Meteorology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
