Results 121 to 130 of about 243 (163)

A newly discovered neural stem cell population is generated by the optic lobe neuroepithelium during embryogenesis in <i>Drosophila melanogaster</i>.

Development, 2018
Hakes AE, Otsuki L, Brand AH.
europepmc   +1 more source

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A Comparative Study on Indoor Ranging Accuracy of LEO-PNT Systems

2025 International Conference on Localization and GNSS (ICL-GNSS)
The prospect of using Low Earth Orbit - Position-Navigation-Timing (LEO-PNT) for indoor applications has been gaining traction in the past years, given the difficulties that Global Navigation Satellite Systems (GNSS) face in these scenarios. Inherently, LEO satellites deliver higher received power than GNSS, assuming similar carrier frequency bands ...
Elena-Simona Lohan
exaly   +3 more sources

LEO-PNT payload architecture and satellite design analysis

2024 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE)
Peer ...
Mayank 0006, Fabricio dos Santos Prol, Ville Lundén, Elena Simona Lohan, Zainab Saleem, Shikha Sharma, Mohammad Zahidul H. Bhuiyan, Sanna Kaasalainen, Heidi Kuusniemi, Jaan Praks   +9 more
openaire   +2 more sources

Multi-layer GNSS and LEO-PNT Positioning: Integrity under Constellations’ Correlation

2024 27th International Conference on Information Fusion (FUSION)
Mohammad Zahidul Hasan Bhuiyan, Jindrich Dunik   +1 more
exaly   +2 more sources

Towards an end-to-end simulation of the upcoming LEO-PNT systems

2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Prol, F., Bhuiyan, M., Kaasalainen, S., Lohan, E., Praks, J., Kuusniemi, H.   +5 more
openaire   +2 more sources

Time-Diverse Doppler-only LEO PNT

MILCOM 2023 - 2023 IEEE Military Communications Conference (MILCOM), 2023
Megan O. Moore, R. Michael Buehrer, William C. Headley   +2 more
openaire   +1 more source

LEO-PNT for Augmenting Europe's Space-based PNT Capabilities

2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2023
Lionel Ries, Miguel Cordero Limon, Florin-Catalin Grec, Marco Anghileri, Roberto Prieto-Cerdeira, Felix Abel, Javier Miguez, Jose Vicente Perello-Gisbert, Salvatore D'Addio, Rigas Ioannidis, Alessandra Ostillio, Manuela Rapisarda, Rui Sarnadas, Paride Testani   +13 more
openaire   +1 more source

Evaluating Spread Spectrum Techniques for Indoor LEO-PNT under Channel Impairments

2025 16th IFIP Wireless and Mobile Networking Conference (WMNC)
Abstract: The rapid deployment of Low Earth Orbit (LEO) satellite constellations is transforming global connectivity, with potential applications extending beyond communication into precise Positioning, Navigation, and Timing (PNT). Their low altitude, high signal availability, and strong Doppler characteristics make LEO satellites a promising ...
Femke Wouters, Wout Van Uytsel, Thomas Janssen   +2 more
openaire   +2 more sources

Analysis of complementary LEO-PNT and Radio Occultation observations for Ionospheric reconstruction.

Reconstructing the ionosphere with high precision is critical for understanding space weather and its impacts on satellite communications, navigation, and radar systems. Traditionally, ionospheric studies rely on ionosondes and radar measurements as well as ground based Total Electron Content derived from GNSS (Global Navigation Satellite System) as ...
Lucas Schreiter, Andreas Brack, Benjamin Männel, Adrian Jäggi, Daniel Arnold, Harald Schuh   +5 more
openaire   +2 more sources