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The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximately…

Instrumentation and Methods for Astrophysics · Physics 2019-07-23 Klaus Abich , Claus Braxmaier , Martin Gohlke , Josep Sanjuan , Alexander Abramovici , Brian Bachman Okihiro , David C. Barr , Maxime P. Bize , Michael J. Burke , Ken C. Clark , Glenn de Vine , Jeffrey A. Dickson , Serge Dubovitsky , William M. Folkner , Samuel Francis , Martin S. Gilbert , Mark Katsumura , William Klipstein , Kameron Larsen , Carl Christian Liebe , Jehhal Liu , Kirk McKenzie , Phillip R. Morton , Alexander T. Murray , Don J. Nguyen , Joshua A. Ravich , Daniel Shaddock , Robert Spero , Gary Spiers , Andrew Sutton , Joseph Trinh , Duo Wang , Rabi T. Wang , Brent Ware , Christopher Woodruff , Bengie Amparan , Mike A. Davis , James Howell , Micah Kruger , Lynette Lobmeyer , Robert Pierce , Gretchen Reavis , Michael Sileo , Michelle Stephens , Andreas Baatzsch , Christian Dahl , Katrin Dahl , Frank Gilles , Philipp Hager , Mark Herding , Marina Kaufer , Kolja Nicklaus , Kai Voss , Christina Bogan , Karsten Danzmann , Germán Fernández Barranco , Gerhard Heinzel , Alexander Koch , Christoph Mahrdt , Malte Misfeldt , Vitali Müller , Jens Reiche , Daniel Schütze , Benjamin Sheard , Gunnar Stede , Henry Wegener , Andreas Eckardt , Burghardt Guenther , Thomas Mangoldt , Bernd Zender , Thomas Ester , Frank Heine , Christoph Seiter , Steve Windisch , Reinhold Flatscher , Frank Flechtner , Nicolas Grossard , Jerome Hauden , Martin Hinz , Thomas Leikert , Marcus Zimmermann , Anton Lebeda , Arnold Lebeda

In the maintenance of optical fiber networks, there is a growing demand for high-precision measurement of optical loss distribution and fault locations over long distances. In this study, we propose an OCDR method incorporating periodic…

The Herschel SPIRE Fourier transform spectrometer (FTS) performs spectral imaging in the 447-1546 GHz band. It can observe in three spatial sampling modes: sparse mode, with a single pointing on sky, or intermediate or full modes with 1 and…

Olivine and pyroxene are important mineral end-members for studying the sur-face material compositions of mafic bodies. The profiles of visible and near-infraredspectra of olivine-orthopyroxene mixtures systematically varied with their…

Earth and Planetary Astrophysics · Physics 2021-06-23 Hui-Jie Han , Xiao-Ping Lu , Te Jiang , Chih-Hao Hsia , Ya-Zhou Yang , Peng-Fei Zhang , Hao Zhang

Astronomic line mapping with single-pixel instruments is usually performed in an on-the-fly (OTF) or a raster-mapping mode depending on the capabilities of the telescope and the instrument. The observing efficiency can be increased by…

Instrumentation and Methods for Astrophysics · Physics 2009-11-13 V. Ossenkopf

Integral field spectroscopy allows for spectral mapping of extended sources in a time efficient manner. An integral field unit (IFU) in the ultraviolet on Habitable Worlds Observatory (HWO) could be used to quickly map extended objects like…

Out-of-focus (OOF) holography can be used to determine aperture deformations of radio telescopes that lead to errors in the phase of the complex aperture distribution. In contrast to traditional methods, OOF holography can be performed…

Instrumentation and Methods for Astrophysics · Physics 2024-06-26 T. Cassanelli , U. Bach , B. Winkel , A. Kraus

We developed the X-ray, Gamma-ray and Relativistic Electron detector (XGRE) onboard the TARANIS satellite, to investigate high-energy phenomena associated with lightning discharges such as terrestrial gamma-ray flashes and terrestrial…

The soft X-ray instrument eROSITA on board the Spectrum-Roentgen-Gamma (SRG) observatory has successfully completed four of the eight planned all-sky surveys, detecting almost one million X-ray sources during the first survey (eRASS1). The…

This paper discusses the latest progress in the development of GRAPE (Gamma-Ray Polarimeter Experiment), a hard X-ray Compton Polarimeter. The purpose of GRAPE is to measure the polarization of hard X-rays in the 50-300 keV energy range. We…

Astrophysics · Physics 2017-08-23 J. S. Legere , P. Bloser , J. R. Macri , M. L. McConnell , T. Narita , J. M. Ryan

Radial velocity (RV) is crucial for stellar kinematics and Galactic archaeology. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has obtained over ten million low-resolution spectra ($R \sim 1800$), yielding RVs for…

Solar and Stellar Astrophysics · Physics 2026-04-22 Jinming Zhang , Haibo Yuan , Zhijia Tian

We address the feasibility of a GNSS-R code-altimetry space mission and more specifically a dominant term of its error budget: the reflected-signal range precision. This is the RMS error on the reflected-signal delay, as estimated by…

Atmospheric and Oceanic Physics · Physics 2007-05-23 O. Germain , G. Ruffini

The Herschel SPIRE instrument consists of an imaging photometric camera and an imaging Fourier Transform Spectrometer (FTS), both operating over a frequency range of 450-1550 GHz. In this paper, we briefly review the FTS design, operation,…

In this paper we optimize the pilot overhead for ultra-reliable short-packet transmission and investigate the dependence of this overhead on packet size and error probability. In particular, we consider a point-to-point communication in…

Information Theory · Computer Science 2017-08-16 Mohammadreza Mousaei , Besma Smida

In this paper, we developed a spectral emulator based on the Mapping Nearby Galaxies at Apache Point Observatory Stellar Library (MaStar) and a grouping optimization strategy to estimate effective temperature (T_eff), surface gravity (log…

Solar and Stellar Astrophysics · Physics 2024-11-14 Jun-chao Liang , A-Li Luo , Yin-Bi Li , Xiao-Xiao Ma , Shuo Li , Shu-Guo Ma , Hai-Ling Lu , Yun-Jin Zhang , Bing Du , Xiao Kong

Large grids of synthetic spectra covering a widespread range of stellar parameters are mandatory for different stellar and (extra-)Galactic physics applications. Such large grids can be used for the automatic parametrisation of stellar…

Solar and Stellar Astrophysics · Physics 2015-06-05 P. de Laverny , A. Recio-Blanco , C. C. Worley , B. Plez

With its array of 3840 Transition Edge Sensors (TESs) operated at 90 mK, the X-Ray Integral Field Unit (X-IFU) on board the ESA L2 mission Athena will provide spatially resolved high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) over…

The B-mode Foreground Experiment (BFORE) is a proposed NASA balloon project designed to make optimal use of the sub-orbital platform by concentrating on three dust foreground bands (270, 350, and 600 GHz) that complement ground-based cosmic…

Arcus is a concept for a probe class mission to deliver high-resolution FUV and X-ray spectroscopy. For X-rays, it combines cost-effective silicon pore optics (SPO) with high-throughput critical-angle transmission (CAT) gratings to achieve…

Instrumentation and Methods for Astrophysics · Physics 2023-10-02 Hans Moritz Günther , Peter Cheimets , Eric D. Miller , Casey DeRoo , Randall K. Smith , Andrew Ptak , Ralf K. Heilmann

This study investigates a communication-centric integrated sensing and communication system that utilizes orthogonal time-frequency space (OTFS) modulated signals emitted by low Earth orbit satellites to estimate the parameters of space…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Tong Ding , Luca Venturino , Emanuele Grossi
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