Amplified reference pulse storage for low-coherence pulsed Doppler lidar

2006 ◽  
Vol 45 (32) ◽  
pp. 8346 ◽  
Author(s):  
Jyi-Lai Shen ◽  
Rainer Künnemeyer
Keyword(s):  
Doppler Lidar ◽  
Pulsed Doppler ◽  
Reference Pulse ◽  
Low Coherence

Reference-beam storage for long-range low-coherence pulsed Doppler lidar

2001 ◽  
Vol 40 (18) ◽  
pp. 3076 ◽  
Author(s):  
Adrian A. Dorrington ◽  
Rainer Künnemeyer ◽  
Paul M. Danehy
Keyword(s):  
Long Range ◽  
Reference Beam ◽  
Doppler Lidar ◽  
Pulsed Doppler ◽  
Low Coherence

Evolution of the Monterey Bay Sea-Breeze Layer As Observed by Pulsed Doppler Lidar

1993 ◽  
Vol 50 (24) ◽  
pp. 3959-3982 ◽  
Author(s):  
Robert M. Banta ◽  
Lisa D. Olivier ◽  
David H. Levinson
Keyword(s):  
Sea Breeze ◽  
Monterey Bay ◽  
Doppler Lidar ◽  
Pulsed Doppler

scholarly journals Identification of Aircraft Wake Vortex Based on SVM

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Weijun Pan ◽  
Zhengyuan Wu ◽  
Xiaolei Zhang
Keyword(s):  
Environmental Parameters ◽  
Classification Model ◽  
Support Vector ◽  
Wake Vortex ◽  
Doppler Lidar ◽  
Pulsed Doppler ◽  
Wind Fields ◽  
Wake Turbulence ◽  
Aircraft Wake ◽  
Separation Standards

The aircraft wake vortex has important influence on the operation of the airspace utilization ratio. Particularly, the identification of aircraft wake vortex using the pulsed Doppler lidar characteristics provides a new knowledge of wake turbulence separation standards. This paper develops an efficient pattern recognition-based method for identifying the aircraft wake vortex measured with the pulsed Doppler lidar. The proposed method is outlined in two stages. (i) First, a classification model based on support vector machine (SVM) is introduced to extract the radial velocity features in the wind fields by combining the environmental parameters. (ii) Then, grid search and cross-validation based on soft margin SVM with kernel tricks are employed to identify the aircraft wake vortex, using the test dataset. The dataset includes wake vortices of various aircrafts collected at the Chengdu Shuangliu International Airport from Aug 16, 2018, to Oct 10, 2018. The experimental results on dataset show that the proposed method can identify the aircraft wake vortex with only a small loss, which ensures the satisfactory robustness in detection performance.

Radiometric calibration of an airborne CO_2 pulsed Doppler lidar with a natural Earth surface

2002 ◽  
Vol 41 (18) ◽  
pp. 3530 ◽  
Author(s):  
Dean R. Cutten ◽  
Jeffry Rothermel ◽  
Maurice A. Jarzembski ◽  
R. Michael Hardesty ◽  
James N. Howell ◽  
...  
Keyword(s):  
Earth Surface ◽  
Doppler Lidar ◽  
Radiometric Calibration ◽  
Pulsed Doppler
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