Results 81 to 90 of about 3,512 (204)
Two‐Day Wave Modulation of Gravity Wave Momentum Fluxes Observed Over South America
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 8, 28 April 2025.Abstract Planetary wave (PW) modulation of gravity wave (GW) dissipation has long been proposed as a source of longitudinal variability in the mesosphere and lower thermosphere. However, direct measurements of GW drag are rare. We identify 2‐day wave variations in GW momentum fluxes measured by the Southern Argentina Agile Meteor Radar (SAAMER) in Rio ...
Ruth S. Lieberman +5 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract During the March equinox of 2023, a strong easterly wind of ∼80 m s−1 appeared at an altitude of ∼82 km in the equatorial upper mesosphere, which is regarded as an enhancement of the mesopause semi‐annual oscillation. In this study, a new reanalysis data available up to 110 km was used to investigate its momentum budget.
Kaoru Sato +9 more
wiley +1 more source
Earth and Space Science, Volume 12, Issue 1, January 2025.Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang +9 more
wiley +1 more source
Multistatic Passive Detection of Cyclostationary Signals
ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)In this work we consider a multistatic passive detection problem, which is motivated by a multiple-input multiple-output (MIMO) passive radar application. Specifically, we consider a single illuminator of opportunity (IO) and several surveillance and reference arrays for the detection of a Gaussian cyclostationary signal in temporally colored and ...
Stefanie Horstmann +2 more
openaire +3 more sources
Fundamental aspects of netted radar performance [PDF]
, 2010 Netted radar employs several spatially distributed transmitters and receivers for information retrieval. This system topology offers many advantages over traditional monostatic and bistatic systems which use a single transmitter and a single receiver ...
Teng, Y.
core
Archives of Acoustics, 2014 This paper describes key features of a bistatic operation in the hydroacoustic systems, his performance model and constraints imposed by environment and propagation conditions in shallow water.
Andrzej Elminowicz, L. Zajączkowski
doaj
A Phase Synchronization Method for Miniature Multistatic FMCW SAR
Leida xuebaoThe miniature multistatic Synthetic Aperture Radar (SAR) system uses a flexible configuration of transceiver division compared with the miniature monostatic SAR system, thereby affording the advantages of multi-angle imaging. As the transceiver-separated
Tao ZHOU +3 more
doaj +1 more source
3-D Moving Target Localization in Multistatic HFSWR: Efficient Algorithm and Performance Analysis
Remote SensingHigh-frequency surface wave radar (HFSWR) is unable to measure the target’s altitude information due to its limited antenna aperture in the elevation dimension.
Xun Zhang +3 more
doaj +1 more source
Entanglement Assisted Multistatic Radars
, 2022 An entanglement assisted (EA) multistatic radar is proposed that significantly outperforms corresponding EA bistatic, coherent state-based quantum, and classical radars.
Djordjevic, Ivan B.
core +1 more source