Results 61 to 70 of about 5,913 (195)

Collaborative transmit resource scheduling and waveform selection for target tracking in multistatic radar system

IET Radar, Sonar & Navigation, 2021
This paper proposes a collaborative transmit resource scheduling and waveform selection (CTRSWS) strategy for target tracking in multistatic radar system which consists of one transmitter and an arbitrary number of receivers.
Yijie Wang, Chenguang Shi, Fei Wang, Jianjiang Zhou   +3 more
doaj   +1 more source

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, Gunter Stober, Erich Becker, Diego Janches, Jun Ma, Alan Liu   +5 more
wiley   +1 more source

Two-dimensional wind field observation based on multistatic meteor radars in central and eastern China

地球与行星物理论评
All-sky meteor radars have become a reliable and widely used tool for observing horizontal winds in the mesosphere and lower thermosphere (MLT) region. This provides vital data support for the study of dynamics in this region.
Maolin Lu, Wen Yi, Jie Zeng, Xianghui Xue, Hailun Ye, Tingdi Chen   +5 more
doaj   +1 more source

Frequency Domain Image Reconstruction for Imaging With Multistatic Dynamic Metasurface Antennas

IEEE Access, 2022
Dynamic metasurface antennas (DMAs) have recently been introduced as a computational imaging (CI) platform that offers significant advantages over conventional imaging systems.
Vasiliki Skouroliakou, Amir Masoud Molaei, Maria Garcia-Fernandez, Guillermo Alvarez-Narciandi, Okan Yurduseven   +4 more
doaj   +1 more source

Causes of the Abnormally Strong Easterly Phase of the Mesopause Semiannual Oscillation During the March Equinox of 2023 Revealed by a New Reanalysis Data Covering the Entire Middle Atmosphere

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, Dai Koshin, Jose Suclupe, Jorge L. Chau, Lourivaldo M. Lima, Guozhu Li, S. Vijaya Bhaskara Rao, M. Venkat Ratnam, Rodolfo Rodriguez, Danny Scipion   +9 more
wiley   +1 more source

Accurate Phase Calibration of Multistatic Imaging System for Medical and Industrial Applications

Applied Sciences
Multistatic imaging systems are commonly used in radar systems and microwave imaging. In these systems, many antennas are arranged three-dimensionally and connected to RF switches.
Hiroshi Tabata, Makoto R. Asakawa, Soichiro Yamaguchi   +2 more
doaj   +1 more source

Performance Analysis for Joint Target Parameter Estimation in UMTS-Based Passive Multistatic Radar with Antenna Arrays Using Modified Cramér-Rao Lower Bounds

Sensors, 2017
In this study, the modified Cramér-Rao lower bounds (MCRLBs) on the joint estimation of target position and velocity is investigated for a universal mobile telecommunication system (UMTS)-based passive multistatic radar system with antenna arrays. First,
Chenguang Shi, Fei Wang, Sana Salous, Jianjiang Zhou   +3 more
doaj   +1 more source

Gait Analysis of Horses for Lameness Detection with Radar Sensors [PDF]

, 2017
This paper presents the preliminary investigation of the use of radar signatures to detect and assess lameness of horses and its severity. Radar sensors in this context can provide attractive contactless sensing capabilities, as a complementary or ...
Fioranelli, F., Le Kernec, J., Marshall, J.F., Shrestha, A., Voute, L.   +4 more
core   +1 more source

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

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, Batuhan Osmanoğlu, Bernd Scheuchl, Shadi Oveisgharan, Jeanne M. Sauber, MinJeong Jo, Ala Khazendar, Ekaterina Tymofyeyeva, Betsy Wusk, Arif Albayrak   +9 more
wiley   +1 more source

Performance Analysis of Tomographic Methods Against Experimental Contactless Multistatic Ground Penetrating Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Ground-penetrating radar (GPR) technology for underground exploration consists of the transmission of an electromagnetic signal in the ground for sensing the presence of buried objects.
Michele Ambrosanio, Martina Teresa Bevacqua, Tommaso Isernia, Vito Pascazio   +3 more
doaj   +1 more source