Results 31 to 40 of about 643,838 (299)
Spectral and temporal gating mechanisms enhance the clutter rejection in the echolocating bat, Rhinolophus rouxi [PDF]
, 1991 Doppler shift compensation behaviour in horseshoe bats, Rhinolophus rouxi, was used to test the interference of pure tones and narrow band noise with compensation performance.
Neumann, Ingrid, Schuller, Gerd
core +1 more source
EURASIP Journal on Wireless Communications and Networking, 2007 Automatic target recognition (ATR) in target search phase is very challenging because the target range and mobility are not yet perfectly known, which results in delay-Doppler uncertainty.
Qilian Liang
doaj +2 more sources
Single camera three component planar velocity measurements, using two frequency Planar Doppler Velocimetry (2v-PDV) (2005) [PDF]
, 2005 The work presented here describes a method that allows three component velocity measurements to be made, quickly and non-intrusively, across a plane in a flow defined by a laser light sheet. The method, two frequency planar Doppler Velocimetry (2v-PDV)
Charrett, Thomas O. H. +5 more
core +1 more source
A generalized semi-analytical model for delay/Doppler altimetry [PDF]
2014 IEEE Geoscience and Remote Sensing Symposium, 2014 This paper introduces a new model for delay/Doppler altimetry, taking into account the effect of antenna mispointing. After defining the proposed model, the effect of the antenna mispointing on the altimetric waveform is analyzed as a function of along-track and across-track angles.
Abderrahim Halimi +4 more
openaire +2 more sources
Hepatology, EarlyView., 2022 Hepatic endothelial Alk1 signaling protects from development of vascular malformations while maintaining organ‐specific endothelial differentiation and angiocrine portmanteau of the names Wingless and Int‐1 signaling. Abstract Background and Aims In hereditary hemorrhagic telangiectasia (HHT), severe liver vascular malformations are associated with ...
Christian David Schmid +20 more
wiley +1 more source
Position-Specific Statistics of 60 GHz Vehicular Channels During Overtaking
IEEE Access, 2019 The time-variant vehicle-to-vehicle radio propagation channel in the frequency band from 59.75 to 60.25 GHz has been measured in an urban street in the city center of Vienna, Austria.
Erich Zochmann +13 more
doaj +1 more source
The MIMO-OTFS Technique in the Next 6G Communications
Engineering AccessThe orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj +1 more source
Measurement-Based Delay and Doppler Characterizations for High-Speed Railway Hilly Scenario
International Journal of Antennas and Propagation, 2014 This paper presents results for delay and Doppler spread characterization in high-speed railway (HSR) hilly scenario. To investigate the propagation characteristics in this specific terrain, a measurement campaign is conducted along the “Guangzhou ...
Yan Zhang +4 more
doaj +1 more source
Delay-Doppler Multiplexing with Global Filtering
2025 IEEE Wireless Communications and Networking Conference (WCNC)This paper proposes a novel modulation technique called globally filtered orthogonal time frequency space (GF-OTFS) which integrates single-carrier frequency division multiple access (SC-FDMA)-based delay-Doppler representation with universal filtered multi-carrier (UFMC) modulation.
Jialiang Zhu +2 more
openaire +3 more sources
On the Use of a Two-Dimensional Cyclic Prefix in OTFS Modulation and Its Implications
IEEE Open Journal of the Communications SocietyIn this manuscript we investigate the implications of adopting a double cyclic prefix in the orthogonal time-frequency space modulation. Our study first focuses on the analysis of the modulated signal and on the development of a useful model for the ...
Michele Mirabella +2 more
doaj +1 more source