Results 11 to 20 of about 3,239 (163)

Recent Progress in Lunar Laser Ranging at Grasse Laser Ranging Station

open access: yesEarth and Space Science, 2020
Based on a fully passive space segment, the lunar laser ranging experiment is the last of the Apollo Lunar Surface Experiments Package to operate. Observations from the Grasse lunar laser ranging station have been made on a daily basis since the first ...
Julien Chabé   +13 more
doaj   +2 more sources

Investigation into Electromagnetic Compatibility Conducted Susceptibility of a Laser Ranging System

open access: yesPhotonics, 2023
Laser ranging systems are a widely used form of electronic system and are generally influenced by complex electromagnetic environments. We used a laser ranging system comprising the VL53L0X laser ranging sensor module as the research object and designed ...
Peng Huang   +4 more
doaj   +3 more sources

Design of pulse laser high-precision ranging algorithm under low signal-to-noise ratio

open access: yesOpen Physics, 2022
Because the traditional pulse laser high-precision ranging method has the problems of low ranging accuracy and long ranging time, a pulse laser high-precision ranging algorithm under low signal-to-noise ratio is proposed.
Chen Fang, Luo Lingling
doaj   +2 more sources

Tests of Gravity Using Lunar Laser Ranging

open access: yesLiving Reviews in Relativity, 2010
Lunar laser ranging (LLR) has been a workhorse for testing general relativity over the past four decades. The three retroreflector arrays put on the Moon by the Apollo astronauts and the French built arrays on the Soviet Lunokhod rovers continue to be ...
Stephen M. Merkowitz
doaj   +2 more sources

Anti-interference pulsed laser ranging system [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
Pulsed laser rangefinders prove to be cost-effective and practical devices when used at distances of several tens of kilometers due to their compactness, portability and energy efficiency. However, the measurement accuracy is significantly reduced by the
Sadchenko A. V.   +2 more
doaj   +1 more source

Feasibility of satellite-to-ground continuous-variable quantum key distribution

open access: yesnpj Quantum Information, 2021
Establishing secure communication links at a global scale is a major potential application of quantum information science but also extremely challenging for the underlying technology.
Daniele Dequal   +6 more
doaj   +1 more source

Detection of retroreflective objects based on search for spatial anomalies

open access: yesКомпьютерная оптика, 2022
This work is devoted to the study of methods for detecting retroreflective objects, including optical and optoelectronic observation devices, based on the search for spatial anomalies in images formed in pulsed laser ranging systems. Algorithms, software
S.M. Borzov   +2 more
doaj   +1 more source

Laser Ranging Bathymetry Using a Photon-Number-Resolving Detector

open access: yesRemote Sensing, 2022
The sensitivity and robustness against background noise of optical measurements, and specifically range-finding, can be improved by detecting the light with photon-number-resolving detectors (PNRD).
Lior Cohen   +4 more
doaj   +1 more source

Study on the Preliminary Design of ARGO-M Operation System [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
Korea Astronomy and Space Science Institute has been developing one mobile satellite laser ranging system named as accurate ranging system for geodetic observation-mobile (ARGO-M). Preliminary design of ARGO-M operation system (AOS) which is one of the
Yoon-Kyung Seo   +6 more
doaj   +1 more source

Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation

open access: yesGuangtongxin yanjiu, 2022
In order to solve the problem that the laser satellite terminal can realize the ranging function while completing the communication function, this paper designs a method based on the Delta-Sigma modulation to realize the laser phase ranging, which can ...
Jin-xin ZUO   +6 more
doaj   +3 more sources

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