Compact high-speed scanning lidar system

2012 ◽  
Author(s):  
Cameron Dickinson ◽  
Marwan Hussein ◽  
Jeff Tripp ◽  
Manny Nimelman ◽  
Alexander Koujelev
Keyword(s):  
High Speed ◽  
Lidar System ◽  
Scanning Lidar

scholarly journals A new mobile and portable scanning lidar for profiling the lower troposphere

2015 ◽  
Vol 4 (1) ◽  
pp. 35-44 ◽  
Author(s):  
C.-W. Chiang ◽  
S. K. Das ◽  
H.-W. Chiang ◽  
J.-B. Nee ◽  
S.-H. Sun ◽  
...  
Keyword(s):  
Atmospheric Aerosols ◽  
High Speed ◽  
Stimulated Raman Scattering ◽  
Layer Structure ◽  
Lower Troposphere ◽  
Sea Breeze ◽  
Industrial Area ◽  
Atmospheric Pollutants ◽  
Lidar System ◽  
Scanning Lidar

Abstract. An in-house developed mobile and portable three-dimensional scanning lidar system is discussed in this work. The system uses a stimulated Raman-scattering technique for the continuous observation of atmospheric aerosols, clouds and trace gases. This system has a fast scanning technique with a high-speed data acquisition, and permits the real-time measurement of atmospheric pollutants with the temporal resolution of 1 min. This scanning lidar system provides typical horizontal coverage of about 8–10 km while scanning; however, in zenith mode, good quality backscattered signals can be from 20 km, depending upon the laser power and sky conditions. This versatile lidar system has also overcome the drawbacks which are popular in the traditional scanning lidar systems such as complicated operation, overlap height between laser beam and telescope field of view In this system, the optical damage is reduced by using an integral coaxial transmitter and receiver. Some of the initial results obtained from the scanning lidar system are also presented. This study shows that boundary-layer structure and land–sea breeze circulation can be resolved from the developed scanning lidar system. The application of this lidar system to measure the pollutants over an industrial area is also discussed.

scholarly journals A new mobile and portable scanning lidar for profiling lower troposphere

2014 ◽  
Vol 4 (1) ◽  
pp. 165-190 ◽  
Author(s):  
C.-W. Chiang ◽  
S. K. Das ◽  
H.-W. Chiang ◽  
J.-B. Nee ◽  
S.-H. Sun ◽  
...  
Keyword(s):  
Atmospheric Aerosols ◽  
High Speed ◽  
Stimulated Raman Scattering ◽  
Layer Structure ◽  
Lower Troposphere ◽  
Data Retrieval ◽  
Air Pollutant ◽  
Lidar System ◽  
Vertical Range ◽  
Scanning Lidar

Abstract. We present and discuss on an indigenously developed mobile and portable 3-D scanning lidar system. The system utilizes a stimulated Raman-scattering technique for the continuous observation of atmospheric aerosols, clouds and trace gases. The system provides fast scanning technique with a high speed data acquisition, which permits the real-time measurement of air pollutant mobility. The temporal resolution of data retrieval is every one min. The scanning lidar system provides typical horizontal coverage of about 8–10 km when scanning, while the vertical range can be up to 20 km depending upon the laser power and sky conditions. This versatile lidar system has also overcome the drawbacks which are popular in the other scanning lidar system such as complicated operation; overlapping height between laser beam and telescope field of view; and damage of optic detectors for long duration measurement by using an integral coaxial transmitter and receiver. Some of the initial results obtained from the scanning lidar system are also presented. We have shown that the developed 3-D scanning lidar system can resolve the boundary layer structure and land-sea breeze circulation. Discussion is also made on the application of scanning lidar system to measure pollutant over industrial areas.

Aerosol density distribution in the boundary layer measured by a scanning LIDAR system

1993 ◽  
Author(s):  
Shlomo Fastig ◽  
Y. Benayahu ◽  
Abraham Englander ◽  
E. Glaser
Keyword(s):  
Boundary Layer ◽  
Density Distribution ◽  
Lidar System ◽  
Scanning Lidar

scholarly journals High-speed 3D imaging using a chaos lidar system

2022 ◽  
Author(s):  
Hsin-Lin Ho ◽  
Jun-Da Chen ◽  
Ching-An Yang ◽  
Chia-Chi Liu ◽  
Cheng-Ting Lee ◽  
...  
Keyword(s):  
High Speed ◽  
3D Imaging ◽  
Signal To Noise Ratio ◽  
Frame Rate ◽  
System Throughput ◽  
Single Element ◽  
Lidar System ◽  
Practical Applications ◽  
Avalanche Photodetectors ◽  
Outdoor Scenes

AbstractWe characterize a new chaos lidar system configuration and demonstrate its capability for high-speed 3D imaging. Compared with a homodyned scheme employing single-element avalanche photodetectors (APDs), the proposed scheme utilizes a fiber Bragg grating and quadrant APDs to substantially increase the system throughput, frame rate, and field-of-view. By quantitatively analyzing the signal-to-noise ratio, peak-to-standard deviation of the sidelobe level, precision, and detection probability, we show that the proposed scheme has better detection performance suitable for practical applications. To show the feasibility of the chaos lidar system, while under the constrain of eye-safe regulation, we demonstrate high-speed 3D imaging with indoor and outdoor scenes at a throughput of 100 kHz, a frame rate of 10 Hz, and a FOV of 24.5$$^\circ $$ ∘ $$\times $$ × 11.5$$^\circ $$ ∘ for the first time.

SNR Analysis under Multi Pulse Accumulation of Non-Scanning Lidar System

2012 ◽  
Vol 49 (5) ◽  
pp. 051401
Author(s):  
高峰 Gao Feng ◽  
杨进华 Yang Jinhua ◽  
姜成昊 Jiang Chenghao ◽  
朱彦 Zhu Yan
Keyword(s):  
Lidar System ◽  
Scanning Lidar

High speed multi-beam photon-counting Lidar system

2017 ◽  
Author(s):  
Zhaohui Li ◽  
E Wu ◽  
Bingcheng Du ◽  
Heping Zeng ◽  
Guang Wu
Keyword(s):  
High Speed ◽  
Photon Counting ◽  
Lidar System

Spaceborne scanning lidar system (SSLS)

2005 ◽  
Author(s):  
M. Nimelman ◽  
J. Tripp ◽  
G. Bailak ◽  
J. Bolger
Keyword(s):  
Lidar System ◽  
Scanning Lidar

scholarly journals A Portable Airborne Scanning Lidar System for Ocean and Coastal Applications

2009 ◽  
Vol 26 (12) ◽  
pp. 2626-2641 ◽  
Author(s):  
Benjamin D. Reineman ◽  
Luc Lenain ◽  
David Castel ◽  
W. Kendall Melville
Keyword(s):  
Inertial Navigation System ◽  
Differential Gps ◽  
Lidar System ◽  
Ship Wake ◽  
Wave Measurements ◽  
Scanning Lidar ◽  
La Jolla ◽  
Lagoon Reef ◽  
Topographic Surveys ◽  
Rms Errors

Abstract A portable compact airborne scanning lidar system based on the Riegl LMS-Q240i has been developed and its functionality demonstrated for oceanographic and coastal measurements. Differential GPS (DGPS) and an inertial navigation system are synchronized with the lidar, resulting in vertical rms errors of less than 9 cm. Surveys with this airborne system are compared with ground-based DGPS surveys of fixed targets. Measurements of the southern California coastline and nearshore surface wave fields from 17 research flights between August 2007 and December 2008 are analyzed and discussed. The October 2007 landslide on Mt. Soledad in La Jolla, California, was documented by two of the flights. The topography, lagoon, reef, and surrounding wave field of Lady Elliot Island in Australia’s Great Barrier Reef were measured with the airborne scanning lidar system on eight research flights in April 2008. Applications of the system, including coastal topographic surveys, wave measurements, ship wake studies, and coral reef research, are presented and discussed.

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