Results 1 to 10 of about 238 (112)
Characterization of aerosol transportation is important in order to understand regional and global climatic changes. To obtain accurate aerosol profiles and wind profiles, aerosol lidar and Doppler wind lidar are generally combined in atmospheric ...
Manyi Li +5 more
doaj +3 more sources
Cloud Seeding Evidenced by Coherent Doppler Wind Lidar
Evaluation of the cloud seeding effect is a challenge due to lack of directly physical observational evidence. In this study, an approach for directly observing the cloud seeding effect is proposed using a 1548 nm coherent Doppler wind lidar (CDWL ...
Jinlong Yuan +6 more
doaj +3 more sources
Coherent Focused Lidars for Doppler Sensing of Aerosols and Wind
Many coherent lidars are used today with aerosol targets for detailed studies of e.g., local wind speed and turbulence. Fibre-optic lidars operating near 1.5 μm dominate the wind energy market, with hundreds now installed worldwide.
Chris Hill
doaj +3 more sources
Pulse Accumulation Approach Based on Signal Phase Estimation for Doppler Wind Lidar [PDF]
Coherent Doppler wind lidar (CDWL) uses transmitted laser pulses to measure wind velocity distribution. However, the echo signal of CDWL is easily affected by atmospheric turbulence, which can decrease the signal-to-noise ratio (SNR) of lidar. To improve
Naiyuan Liang +7 more
doaj +2 more sources
Real-Time Synchronous Acquisition and Processing of Signal in Coherent Doppler Wind Lidar Using FPGA
Coherent Doppler wind lidar has become a primary remote sensing technique for measuring atmospheric wind fields in recent years. However, the high bandwidth of the time domain echo signal has limited real-time data acquisition and processing.
Qing Liu +3 more
doaj +3 more sources
Accurate wind shear detection is crucial for aviation safety, especially in landing and departure. A new approach for windshear alerting is proposed and demonstrated.
Jinlong Yuan +6 more
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Typical Wind Shear Simulation and Detection Analysis Based on Coherent Doppler Wind Lidar [PDF]
To enhance the accuracy of wind shear identification by coherent Doppler wind lidar (CDWL), it is necessary to clarify the variation characteristics of CDWL detection results under typical airflow disturbance conditions.
Yuanyuan Wei +4 more
doaj +2 more sources
A method for estimation of the turbulent energy dissipation rate from measurements by a conically scanning pulsed coherent Doppler lidar (PCDL), with allowance for the wind transport of turbulent velocity fluctuations, has been developed.
Igor N. Smalikho, Viktor A. Banakh
doaj +3 more sources
Development of Synergetic-Active Sensor-System for Evaluation of Observations by Earthcare [PDF]
We develop the synergetic ground-based active-sensor-system for the evaluation of observations by space-borne lidars. The system consists of second version of multi-field-view multiple-scattering polarization lidar (MFMSPL-2), multiple-field-of-view high
Okamoto Hajime +8 more
doaj +1 more source
Development and Test of a Fringe-Imaging Direct-Detection Doppler Wind Lidar for Aeronautics [PDF]
DLR currently investigates the use of Doppler wind lidar as sensor within feedforward gust alleviation control loops on fast-flying fixed-wing aircraft.
Vrancken Patrick, Herbst Jonas
doaj +1 more source

