Results 101 to 110 of about 1,361,088 (299)

Surface Current Retrieval From TerraSAR-X Data Using Doppler Measurements [PDF]

open access: yes, 2010
The purpose of this paper is to investigate the estimation of surface currents directly on stripmap TerraSAR-X data, as an alternative to Along Track Interferometry.
Thomas Fritz   +7 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Evaluasi Kinerja Sistem Gaussian Minimum Shift Keying (GMSK) untuk Pengiriman Citra dari Satelit Nano ke Stasiun Bumi

open access: yesJurnal Teknik ITS, 2012
Satelit nano IiNUSAT merupakan satelit nano pertama yang dibuat dan diluncurkan oleh mahasiswa dari beberapa perguruan tinggi di Indonesia. Riset terkait satelit nano IiNUSAT telah mencapai tahap kedua yang bernama IiNUSAT II.
Muhammad Rizal Habibi   +2 more
doaj  

Vehicle Localization Using Doppler Shift and Time of Arrival Measurements in a Tunnel Environment. [PDF]

open access: yesSensors (Basel), 2022
Halili R   +6 more
europepmc   +1 more source

Doppler-Raman crossover in resonant scattering

open access: yes, 2020
We consider theoretically light scattering by a resonant layer that periodically moves in real space. At small frequencies of motion the scattered light spectrum reveals the frequency shift that is governed by the Doppler effect.
A. V. Poshakinskiy (17493162)   +2 more
core   +1 more source

Overcoming the Phase Discontinuity Problem in RIS Optimization: A Robust and Scalable Phase‐Aware Deep Regression Framework via Hybrid CNN–LSTM Architecture

open access: yesAdvanced Intelligent Systems, EarlyView.
The phase discontinuity problem—where the cyclic nature of phase angles causes catastrophic errors near the ±π boundary—is a fundamental obstacle in learning‐based reconfigurable intelligent surface (RIS) optimization. A phase‐aware hybrid CNN–LSTM framework resolves this by decomposing phase predictions into sine–cosine components, mapping circular ...
Seda Savaşçı Şen   +3 more
wiley   +1 more source

Binaural Localization for a Mobile Sound Source

open access: yesJournal of Biomechanical Science and Engineering, 2011
This paper proposes a biologically inspired binaural auditory system to localize a mobile sound source. The robot considered in this paper has two microphones installed on a mobile platform to provide binaural hearing.
Makoto KUMON, Shuji UOZUMI
doaj   +1 more source

A Bioinspired Underwater Soft Robot for Active Intravesical Liquid Delivery and Mixing

open access: yesAdvanced Intelligent Systems, EarlyView.
A bioinspired underwater soft robot is reported that integrates an elastic strain energy‐driven soft robotic pump with a programmable flexible magnetic valve, enabling remotely controlled, programmable, and sustained liquid release and mixing. This functionality is enabled by the synergistic integration of elastic strain energy‐driven pumping and ...
Jacob Katona   +7 more
wiley   +1 more source

The doppler shift transient field method

open access: yesProgress in Particle and Nuclear Physics, 2001
Abstract A novel method to measure the magnetic moments of subpico-second high-spin states via the precession in a transient magnetic field is proposed, which avoids the uncertainties of delayed side and cascade feedings inherent in heavy-ion compound reactions.
openaire   +2 more sources

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