The firstly commercialized millimeter-wave application was the automotive radar, which appeared nearly 10 years ago, for driving safety support. The market size has been growing year by year and is expected to reach a level of around five million units per year in 2016. With the progress in popularity, the radar has been expected to spread even to general cars, therefore, development of lowcost...

The SERSIO sounding rocket was launched from Ny-Alesund, Svalbard into an ion upflow event simultaneously observed by the EISCAT radar facility in Longyearbyen on January 22, 2004 at 0857 UT. It reached an apogee of 782 km. In situ wave data and thermal particle measurements in the cusp/cleft region clearly show core thermal ion temperature enhancements up to 0.8 eV in association with 0-4kHz b...

The millimeter-wave spectrum from 30 to 300 GHzfeatures large available bandwidth and small wavelengths which can be leveraged for high-throughput wireless communications and high-resolution radar sensors. Key mass-market millimeter-wave applications include local­ area networks at 60 GHz which can support multiple gigabit-per-second transfer rates, vehicular radars at 76-81 GHzfor collision av...

Abshact — Ocean radar backscatter in the presence of large waves is investigated using data acquired with the Jet Propulsion Laboratory NUSCAT radar at K. band for horizontal and vertical polarizations and the University of Massachusetts C-SCAT radar at C band for vertical polarization during the Surface Wave Dynamics Experiment. Backscatter 2 data of ocean surfaces was obtained in the presence...

[1] The relationship between microwave imaging radar measurements of fluid velocities in the surf zone and shoaling, breaking, and broken waves is studied with field observations. Normalized radar cross section (NRCS) and Doppler velocity are estimated from microwave measurements at near-grazing angles, and in situ fluid velocities are measured with acoustic Doppler velocimeters (ADVs). Joint h...

methods to derive wind speed and the sea state from Synthetic Aperture Radar (SAR) satellite data are presented and applied for use in high resolution numerical modeling for coastal application. The new radar satellite TerraSAR-X (TS-X) images the sea surface with a high resolution up to 1m. So not only the wind field and integrated sea state parameters but also individual ocean waves with wave...

High-frequency (HF) surface wave radars provide a unique capability to detect targets far beyond the conventional microwave radar coverage. This capability also could contribute to the development and improvement of Tsunami Early Warning Systems. This paper presents the system design and introduces the key signal processing methodologies that enable the HF radar to provide early warning of the ...

[1] The distribution of surficial deposits in the vicinity of impact craters on Venus was studied using measurements of the polarization properties of the reflected radar wave. Subsurface scattering of an incident circularly polarized radar signal results in a linearly polarized component in the radar echo due to the differing transmission coefficients at a smooth (at wavelength scales) atmosph...

Recently, advanced driver assistance systems (ADAS) with the keyword of “safety” have attracted attention in the world. Many mega-suppliers (Tier 1) and the others have been carrying out development for safe systems using cameras, lasers, and millimeter-wave radar to realize a self-driving system in the near future. Fujitsu Laboratories has been developing millimeter-wave monolithic microwave i...