Results 271 to 280 of about 1,219,894 (381)

Adaptive filter parameter reconstruction technology for rocket inertial navigation/satellite integrated navigation system. [PDF]

PeerJ Comput Sci
Yang Z, Chen G, Niu M, Yan X, Tian X, Zhang G.   +5 more
europepmc   +1 more source

A Satellite Navigation Signal Scheme Using Zadoff-Chu Sequence for Reducing the Signal Acquisition Space

, 2013
Dae-Soon Park, Jeong-Been Kim, Je-Won Lee, Kap-Jin Kim, Ki‐Won Song, Jae-Min Ahn   +5 more
openalex   +2 more sources

Use of Satellites for Navigation*

Navigation, 1958
openaire   +2 more sources

Infrared Photovoltaic–Battery Hybrid Systems Enabled by Colloidal Quantum Dots

Chemistry – An Asian Journal, EarlyView.
Photovoltaic–battery (PV/B) hybrid systems are key for sustainable energy but face cost and efficiency limits. Colloidal quantum dots (CQDs) enable low‐cost near‐infrared light harvesting, surpassing silicon and III–V PVs. This review analyzes CQD properties, their roles in NIR PVs and batteries, and synthesizes current research to highlight progress ...
Hong Ji, Renjun Liu, Peter Smowton, Bo Hou   +3 more
wiley   +1 more source

Unidirectional Orbit Determination for Extended Users Based on Navigation Ka-Band Inter-Satellite Links. [PDF]

Sensors (Basel)
Shangguan Y, Zhang H, Yu Y, Wang W, Liu B, Li H, Ma R.   +6 more
europepmc   +1 more source

Basic performance of BeiDou-2 navigation satellite system used in LEO satellites precise orbit determination

, 2014
Junhong Liu, Defeng Gu, Bing Ju, Jing Yao, Xiaojun Duan, Dongyun Yi   +5 more
openalex   +1 more source

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, EarlyView.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

Lidar IMU fusion navigation system for AGVs in smart factories. [PDF]

PLoS One
Li H, Wu X, Wang L, Jian X, Liu S, Chen Z, Chen S, Touti E.   +7 more
europepmc   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, EarlyView.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

Monocular Visual/IMU/GNSS Integration System Using Deep Learning-Based Optical Flow for Intelligent Vehicle Localization. [PDF]

Sensors (Basel)
Kang J.
europepmc   +1 more source