scholarly journals Continuous-wave light detection and ranging (LiDAR) using image-reject homodyne detection and PRBS modulation

2019 ◽  
Author(s):  
Katie Ward ◽  
James T. Spollard ◽  
Lyle E. Roberts ◽  
David E. McClelland ◽  
Daniel A. Shaddock
Keyword(s):  
Continuous Wave ◽  
Light Detection And Ranging ◽  
Homodyne Detection ◽  
Light Detection ◽  
Continuous Wave Light

scholarly journals Si photonic crystal optical antenna serial array and frequency-modulated continuous-wave light detection and ranging action

2021 ◽  
Vol 119 (23) ◽  
pp. 231103
Author(s):  
Ryo Tetsuya ◽  
Takemasa Tamanuki ◽  
Hiroyuki Ito ◽  
Hiroshi Abe ◽  
Ryo Kurahashi ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Continuous Wave ◽  
Light Detection And Ranging ◽  
Optical Antenna ◽  
Light Detection ◽  
Continuous Wave Light

scholarly journals SPADs and SiPMs Arrays for Long-Range High-Speed Light Detection and Ranging (LiDAR)

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3839
Author(s):  
Federica Villa ◽  
Fabio Severini ◽  
Francesca Madonini ◽  
Franco Zappa
Keyword(s):  
High Speed ◽  
Continuous Wave ◽  
Single Photon ◽  
Single Point ◽  
Light Detection And Ranging ◽  
Large Field ◽  
High Angular Resolution ◽  
Light Detection ◽  
Time Resolved ◽  
Operation Speed

Light Detection and Ranging (LiDAR) is a 3D imaging technique, widely used in many applications such as augmented reality, automotive, machine vision, spacecraft navigation and landing. Achieving long-ranges and high-speed, most of all in outdoor applications with strong solar background illumination, are challenging requirements. In the introduction we review different 3D-ranging techniques (stereo-vision, projection with structured light, pulsed-LiDAR, amplitude-modulated continuous-wave LiDAR, frequency-modulated continuous-wave interferometry), illumination schemes (single point and blade scanning, flash-LiDAR) and time-resolved detectors for LiDAR (EM-CCD, I-CCD, APD, SPAD, SiPM). Then, we provide an extensive review of silicon- single photon avalanche diode (SPAD)-based LiDAR detectors (both commercial products and research prototypes) analyzing how each architecture faces the main challenges of LiDAR (i.e., long ranges, centimeter resolution, large field-of-view and high angular resolution, high operation speed, background immunity, eye-safety and multi-camera operation). Recent progresses in 3D stacking technologies provided an important step forward in SPAD array development, allowing to reach smaller pitch, higher pixel count and more complex processing electronics. In the conclusions, we provide some guidelines for the design of next generation SPAD-LiDAR detectors.

scholarly journals Using Airborne Light Detection and Ranging (LIDAR) to Characterize Forest Stand Condition on the Kenai Peninsula of Alaska

2009 ◽  
Vol 24 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Hans-Erik Andersen
Keyword(s):  
Forest Inventory ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Grid Cell ◽  
Forest Stand ◽  
Light Detection And Ranging ◽  
Inventory Analysis ◽  
Light Detection ◽  
Individual Tree ◽  
Kenai Peninsula

Abstract Airborne laser scanning (also known as light detection and ranging or LIDAR) data were used to estimate three fundamental forest stand condition classes (forest stand size, land cover type, and canopy closure) at 32 Forest Inventory Analysis (FIA) plots distributed over the Kenai Peninsula of Alaska. Individual tree crown segment attributes (height, area, and species type) were derived from the three-dimensional LIDAR point cloud, LIDAR-based canopy height models, and LIDAR return intensity information. The LIDAR-based crown segment and canopy cover information was then used to estimate condition classes at each 10-m grid cell on a 300 × 300-m area surrounding each FIA plot. A quantitative comparison of the LIDAR- and field-based condition classifications at the subplot centers indicates that LIDAR has potential as a useful sampling tool in an operational forest inventory program.

Precision and shortcomings of yaw error estimation using spinner-based light detection and ranging

Wind Energy ◽  
2012 ◽  
Vol 16 (3) ◽  
pp. 353-366 ◽  
Author(s):  
Knud A. Kragh ◽  
Morten H. Hansen ◽  
Torben Mikkelsen
Keyword(s):  
Error Estimation ◽  
Light Detection And Ranging ◽  
Light Detection

Hybrid Integrated Silicon NitridePolymer Optical Phased Array for Efficient Light Detection and Ranging

2021 ◽  
pp. 1-1
Author(s):  
Chul-Soon Im ◽  
Sung-Moon Kim ◽  
Kyeong-Pyo Lee ◽  
Seong-Hyeon Ju ◽  
Jung-Ho Hong ◽  
...  
Keyword(s):  
Phased Array ◽  
Light Detection And Ranging ◽  
Light Detection ◽  
Optical Phased Array

Hardware-in-the-loop projector system for light detection and ranging sensor testing

2012 ◽  
Vol 51 (8) ◽  
pp. 083609-1 ◽  
Author(s):  
Hajin J. Kim ◽  
Charles B. Naumann ◽  
Michael C. Cornell
Keyword(s):  
Light Detection And Ranging ◽  
Hardware In The Loop ◽  
Light Detection

Integrating lidar and geophysical surveys at Falerii Novi and Falerii Veteres (Viterbo)

2009 ◽  
Vol 77 ◽  
pp. 1-27 ◽  
Author(s):  
Rachel Opitz
Keyword(s):  
Sono State ◽  
Light Detection And Ranging ◽  
Light Detection ◽  
Geophysical Surveys

La città romana di Falerii Novi e quella pre-romana di Falerii Veteres vengono riviste in questo articolo attraverso la combinazione di dati da ricognizione lidar (light detection and ranging) e geofisica. La ricognizione lidar fornisce per la prima volta infomiazioni dettagliate sui bordi topograficamente complessi di questi siti e ha permesso di identificare un certo numero di nuove strutture. Osservando tali strutture nel contesto dei dati topografici e geofisici, sono state esplorate le aree urbane periferiche sia come zone per movimento sia come facciate. Tramite questi esempi vengono considerati i potenziali contributi forniti dal lidar alla comprensione generale dell'urbanismo pre-romano e romano.

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