Αποτελέσματα Αναζήτησης
With appropriate software, it is possible to analyse this signal to gain information on wave height, wave length, wave period, and surface currents. X-band radar systems scan the ocean surface in real time at high temporal (1–2 s) and spatial (5–10 m) resolution.
An X-band marine radar antenna on a ship. X band is used in radar applications, including continuous-wave, pulsed, single-polarization, dual-polarization, synthetic aperture radar, and phased arrays.
The radar echo contains information about the Earth’s surface, which drives the reflection of the radar signal. This reflection is driven by: The frequency or wavelength: radar parameter. Polarization: radar parameter. Incidence angle: radar parameter. Dielectric constant: surface parameter.
19 Δεκ 2022 · X-band radar elements are typically spaced closer together than S-band. The spacing between antenna elements on a radar is designed to be less than 1/2 of the wavelength to avoid ambiguities. Higher frequencies have shorter wavelengths, and X-band is higher in frequency than S-band.
23 Φεβ 2020 · X-band marine radar is an effective tool for sea wave remote sensing. Conventional physical-based methods for acquiring wave parameters from radar sea clutter images use three-dimensional Fourier transform and spectral analysis.
1 Ιαν 2014 · Of particular interest here are X-band (f = 8–12 GHz, λ = 2.5–3.75 cm), C-band (f = 4–8 GHz, λ = 3.75–7.5 cm), and L-band (f = 1–2 GHz, λ = 15–30 cm)—the bands used by radar systems in Earth orbit that provide data for our study of how volcanoes deform.
1 Νοε 2016 · Introduction. Robust sensing systems, tolerant to light and weather changing conditions, are required in smart mobility systems for surveillance applications or for driving assistance [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12].
