Abstract
A three-dimensional (3D) wind profiling Lidar, based on the latest high power 1.5 µm fiber laser development at Onera, has been successfully flown on-board a SAFIRE (Service des Avions Français Instrumentés pour la Recherche en Environnement) ATR42 aircraft. The Lidar called LIVE (LIdar VEnt) is designed to measure wind profiles from the aircraft down to ground level, with a horizontal resolution of 3 km, a vertical resolution of 100 m and a designed accuracy on each three wind vector components better than 0.5 m.s−1. To achieve the required performance, LIVE Lidar emits 410 µJ laser pulses repeating at 14 KHz with a duration of 700 ns and uses a conical scanner of 30° total opening angle and a full scan time of 17 s.
Highlights
Since the late 1980s, several on-board coherent wind lidars have been developed, tested and exploited, based on various laser technologies, i.e., at 10.6 μm with a gas laser [1,2,3], and at 2 μm with a solid state laser [4,5,6]
LIVE wind lidar is based on a Leosphere lidar that has been extensively modified to meet the constraints of real-time wind measurement from an aircraft
LIVE lidar has been designed for 3D wind profiling from an aircraft for meteorological applications
Summary
Since the late 1980s, several on-board coherent wind lidars have been developed, tested and exploited, based on various laser technologies, i.e., at 10.6 μm with a gas laser [1,2,3], and at 2 μm with a solid state laser [4,5,6]. The 1.5 μm lidar called LIVE (LIdar VEnt) has been developed at Onera in order to measure three-dimensional (3D) wind fields under an airplane. It was installed and tested on a SAFIRE (Service des Avions Français Instrumentés pour la Recherche en Environnement) ATR42 aircraft. LIVE wind lidar is based on a Leosphere lidar that has been extensively modified to meet the constraints of real-time wind measurement from an aircraft It incorporates an innovative laser amplifier designed and developed by Onera which, thanks to its high peak power pulses, makes it possible to perform wind profiling from the aircraft altitude down to ground level
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
