scholarly journals Velocity Error for Coherent Doppler Lidar with Pulse Accumulation*

2004 ◽  
Vol 21 (6) ◽  
pp. 905-920 ◽  
Author(s):  
Rod Frehlich
Keyword(s):  
Observation Error ◽  
Doppler Lidar ◽  
Engineering Analysis ◽  
Sampling Errors ◽  
Velocity Measurements ◽  
Instrument Error ◽  
Velocity Error ◽  
Velocity Estimate ◽  
Coherent Doppler Lidar ◽  
Total Observation

Abstract The random estimation or instrument error of coherent Doppler lidar velocity estimates with pulse accumulation (multiple lidar shots per velocity estimate) is determined with computer simulations for general conditions. The sampling errors for overlaid lidar tracks and tropospheric wind field conditions are also calculated for space-based operation. These results permit useful engineering analysis based on the total observation error of the velocity measurements.

scholarly journals Platform-Motion Correction of Velocity Measured by Doppler Lidar

2008 ◽  
Vol 25 (8) ◽  
pp. 1369-1382 ◽  
Author(s):  
Reginald J. Hill ◽  
W. Alan Brewer ◽  
Sara C. Tucker
Keyword(s):  
Motion Correction ◽  
Research Laboratory ◽  
Doppler Velocity ◽  
Doppler Lidar ◽  
Earth System ◽  
System Research ◽  
Velocity Data ◽  
Velocity Measurements ◽  
Platform Motion ◽  
Coherent Doppler Lidar

Abstract The NOAA/Earth System Research Laboratory (ESRL) has two coherent Doppler lidar systems that have been deployed on board research vessels to obtain data during several experiments. The instruments measure the wind velocity relative to the motion of the lidar; therefore, correction for the motion of the platform is required. This article gives a thorough analysis of the correction for lidar velocity measurements. The analysis is general enough to be applied to Doppler velocity measurements from all monostatic ship- and aircraftborne lidars and radars, and generalization to bistatic systems is achievable. The correction is demonstrated using miniature master-oscillator power-amplifier (mini-MOPA) Doppler velocity data obtained during the Rain in Cumulus over the Ocean (RICO) experiment.

Characterization of turbulent wake of wind turbine by coherent Doppler lidar

2014 ◽  
Author(s):  
Songhua Wu ◽  
Jiaping Yin ◽  
Bingyi Liu ◽  
Jintao Liu ◽  
Rongzhong Li ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbulent Wake ◽  
Doppler Lidar ◽  
Coherent Doppler Lidar

scholarly journals Low-Level Wind Shear Identification along the Glide Path at BCIA by the Pulsed Coherent Doppler Lidar

Atmosphere ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 50
Author(s):  
Hongwei Zhang ◽  
Xiaoying Liu ◽  
Qichao Wang ◽  
Jianjun Zhang ◽  
Zhiqiang He ◽  
...  
Keyword(s):  
Wind Shear ◽  
Vertical Direction ◽  
Small Scale ◽  
Observation Data ◽  
Doppler Lidar ◽  
Low Level ◽  
Glide Path ◽  
Coherent Doppler Lidar ◽  
Scanning Strategies ◽  
Meteorological Phenomenon

Low-level wind shear is usually to be a rapidly changing meteorological phenomenon that cannot be ignored in aviation security service by affecting the air speed of landing and take-off aircrafts. The lidar team in Ocean University of China (OUC) carried out the long term particular researches on the low-level wind shear identification and regional wind shear inducement search at Beijing Capital International Airport (BCIA) from 2015 to 2020 by operating several pulsed coherent Doppler lidar (PCDL) systems. On account of the improved glide path scanning strategy and virtual multiple wind anemometers based on the rang height indicator (RHI) modes, the small-scale meteorological phenomenon along the glide path and/or runway center line direction can be captured. In this paper, the device configuration, scanning strategies, and results of the observation data are proposed. The algorithms to identify the low-level wind shear based on the reconstructed headwind profiles data have been tested and proved based on the lidar data obtained from December 2018 to January 2019. High spatial resolution observation data at vertical direction are utilized to study the regional wind shear inducement at the 36L end of BCIA under strong northwest wind conditions.

Compact all-fiber pulsed coherent Doppler lidar system for wind sensing

2007 ◽  
Vol 46 (11) ◽  
pp. 1953 ◽  
Author(s):  
S. Kameyama ◽  
T. Ando ◽  
K. Asaka ◽  
Y. Hirano ◽  
S. Wadaka
Keyword(s):  
Doppler Lidar ◽  
Lidar System ◽  
Coherent Doppler Lidar
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