- Superconducting and THz Device Technology
- Radio Astronomy Observations and Technology
- Cosmology and Gravitation Theories
- Underwater Vehicles and Communication Systems
- Advanced Neural Network Applications
- Galaxies: Formation, Evolution, Phenomena
- Maritime Navigation and Safety
- Precipitation Measurement and Analysis
- Astronomy and Astrophysical Research
Tohoku University
2024
Korea University
2020-2023
Among various sensors used to recognize obstacles in marine environments, vision are the most basic. Vision significantly affected by surrounding environment and cannot distant objects. However, despite these drawbacks, they can detect objects that radars nearby regions. They also small such as boats not equipped with an automatic identification system (AIS) or buoys. Thus, radar be a complementary manner. This paper proposes sensor-based model, called Skip-ENet, for recognizing real time....
GroundBIRD is a millimeter-wave telescope to observe the polarization patterns of cosmic microwave background (CMB). The target science topics are primordial gravitational waves from inflation and reionization optical depth. Therefore, this designed achieve highest sensitivity at large angular scales, ℓ = 6 - 300. For wide sky observations (~40% full-sky), scanning high rotation speed (120°/s) important remove atmospheric fluctuations. Microwave kinetic inductance detector (MKID) utilized...
GroundBIRD is a ground-based cosmic microwave background (CMB) experiment for observing the polarization pattern imprinted on large angular scales (ℓ > 6 ) from Teide Observatory in Tenerife, Spain. Our primary scientific objective precise measurement of optical depth τ (σ(τ ∼ 0.01) to reionization epoch Universe cross-check systematic effects measurements made by previous experiments. observes wide sky area Northern Hemisphere (∼ 40% full sky) while continuously rotating telescope at high...
GroundBIRD is a ground-based telescope for measuring the polarization of cosmic microwave background radiation, and it soon to be operational at Teide Observatory. The employs Mizuguchi-Dragone dual reflectors 161 kinetic inductance detectors coupled with single antennas as photon detectors. We present results our optical simulation on pointing direction, stray light response, influence blackbody radiation from baffle. also find that power baffle incident reduced by 99.95% when corrugated...