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Satellite Laser Ranging (SLR) is an established technology used for geodesy, fundamental science and precise orbit determination. This paper reports on the first successful SLR measurement from the German Aerospace Center research…

天体物理仪器与方法 · 物理学 2016-05-25 Daniel Hampf , Fabian Sproll , Paul Wagner , Leif Humbert , Thomas Hasenohr , Wolfgang Riede

Lunar laser ranging (LLR) is used to conduct high-precision measurements of ranges between an observatory on Earth and a laser retro-reflector on the lunar surface. Over the years, LLR has benefited from a number of improvements both in…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Juergen Mueller , James G. Williams , Slava G. Turyshev

The ability to accurately determine the rotation rate and spin axis of active satellites during deployment, during phases of uncertain operations (e.g. loss of control, potential fuel leaks) and particularly for defunct satellites to assess…

地球与行星天体物理 · 物理学 2025-04-08 Peter Bartram , Jim Fletcher , Ewan Schafer , Liam Pieters , David Gooding , Hira Virdee

The precise knowledge of the positions of space debris objects and in particular of defunct satellites is fundamental for satellite operations. Several studies showed that it is possible to improve the accuracy of the orbit determination…

地球与行星天体物理 · 物理学 2019-03-04 E. Cordelli , P. Schlatter , P. Lauber , T. Schildknecht

The Lunar Laser Ranging (LLR) experiment has accumulated 50 years of range data of improving accuracy from ground stations to the laser retroreflector arrays (LRAs) on the lunar surface. The upcoming decade offers several opportunities to…

Recent results of the LARASE research program in terms of models improvements and relativistic measurements are presented. In particular, the results regarding the development of new models for the non-gravitational perturbations that…

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the laws of fundamental gravitational physics and geophysics. Current LLR technology allows us to measure distances to the Moon with a precision approaching 1…

广义相对论与量子宇宙学 · 物理学 2008-11-26 S. M. Kopeikin , E. Pavlis , D. Pavlis , V. A. Brumberg , A. Escapa , J. Getino , A. Gusev , J. Mueller , W. -T. Ni , N. Petrova

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the evolutionary history of the lunar orbit, the laws of fundamental gravitational physics, selenophysics and geophysics as well as for future human missions to…

广义相对论与量子宇宙学 · 物理学 2009-02-23 Sergei Kopeikin

Lunar laser ranging has provided many of the best tests of gravitation since the first Apollo astronauts landed on the Moon. The march to higher precision continues to this day, now entering the millimeter regime, and promising continued…

广义相对论与量子宇宙学 · 物理学 2013-09-25 T. W. Murphy

Space debris is a major problem for all space-active nations. Adopting high precision measuring techniques will help to produce the reliable and accurate catalogue for space debris and collision avoidance. Laser Ranging is a kind of…

天体物理仪器与方法 · 物理学 2011-10-14 Zhang Zhongping , Yang Fumin , Zhang Haifeng , Wu Zhibo , Chen Juping , Li Pu , Meng Wendong

The design and comparison of satellite-terrestrial routing (STR) and inter-satellite routing (ISR) in low Earth orbit satellite constellations is a widely discussed topic. The signal propagation distance under STR is generally longer than…

网络与互联网体系结构 · 计算机科学 2025-01-09 Ruibo Wang , Mustafa A. Kishk , Howard H. Yang , Mohamed-Slim Alouini

At present, tracking data for planetary missions largely consists of radio observables: range-rate range and angular position. Future planetary missions may use Interplanetary Laser Ranging (ILR) as a tracking observable. Two-way ILR will…

地球与行星天体物理 · 物理学 2018-07-25 Dominic Dirkx , Ivan Prochazka , Sven Bauer , Pieter Visser , Ron Noomen , Leonid I. Gurvits , Bert Vermeersen

This paper focuses on the optimal design of a modulated retroreflector (MRR) laser link to establish a high-speed downlink for cube satellites (CubeSats), taking into account the weight and power limitations commonly encountered by these…

信号处理 · 电气工程与系统科学 2024-01-19 Mohammad Taghi Dabiri , Mazen Hasna , Saud Althunibat , Khalid Qaraqe

Publicly available satellite imagery can be an ubiquitous, cheap, and powerful tool for vehicle localisation when a prior sensor map is unavailable. However, satellite images are not directly comparable to data from ground range sensors…

机器人学 · 计算机科学 2020-09-24 Tim Y. Tang , Daniele De Martini , Shangzhe Wu , Paul Newman

Low Earth Orbit (LEO) satellites undergo a period of rapid development driven by ever-increasing user demands, reduced costs, and technological progress. Since there is a paucity of literature on the security and reliability issues of LEO…

信号处理 · 电气工程与系统科学 2023-07-20 Pingyue Yue , Jianping An , Jiankang Zhang , Jia Ye , Gaofeng Pan , Shuai Wang , Pei Xiao , Lajos Hanzo

We present a high-power continuous-wave (CW) lunar laser ranging (LLR) technique that has the potential to significantly improve Earth--Moon distance measurements. Using a 1 kW CW laser at 1064 nm and a 1 m-aperture telescope as an example,…

天体物理仪器与方法 · 物理学 2025-07-01 Slava G. Turyshev

The accuracy reached in the past few years by Satellite Laser Ranging (SLR) allows for measuring even tiny features of the Earth's gravitational field predicted by Einstein's General Relativity by means of artificial satellites. The…

广义相对论与量子宇宙学 · 物理学 2013-11-12 Lorenzo Iorio

Robust and accurate localization and mapping of an environment using laser scanners, so-called LiDAR SLAM, is essential to many robotic applications. Early 3D LiDAR SLAM methods often exploited additional information from IMU or GNSS…

A constellation of remote sensing small satellite system has been developed for infrastructure monitoring in India by using SAR Payload. The LEO constellation of the small satellites is designed in a way, which can cover the entire…

机器人学 · 计算机科学 2021-07-21 Roshan Sah , Raunak Srivastava , Kaushik Das

Starlink and alike have attracted a lot of attention recently, however, the inner working of these low-earth-orbit (LEO) satellite networks is still largely unknown. This paper presents an ongoing measurement campaign focusing on Starlink,…

网络与互联网体系结构 · 计算机科学 2023-07-14 Jianping Pan , Jinwei Zhao , Lin Cai
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