Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Alena Khachaturian"'
Publikováno v:
Emerging Science Journal, Vol 8, Iss 2, Pp 480-495 (2024)
The rapid development of aircraft and unmanned aerial vehicles (UAV) increases their use, including in polar areas, which are characterized by their remoteness and rather harsh conditions. The dominant trends in airborne radar development are expandi
Externí odkaz:
https://doaj.org/article/d60dc0122a18409ea5eb5379317f4090
Publikováno v:
Remote Sensing, Vol 15, Iss 6, p 1613 (2023)
Airborne scatterometer capability depends on not only the device’s technical characteristics but also the scheme used for surface observations. Typically, a rotating-beam scatterometer uses a circular scheme for sampling normalized radar cross-sect
Externí odkaz:
https://doaj.org/article/f4227071fe984f728d9f804fce06e6ed
Autor:
Alexey Nekrasov, Alena Khachaturian, Evgeny Abramov, Pavol Kurdel, Maria Gamcova, Jan Gamec, Mikhail Bogachev
Publikováno v:
IEEE Access, Vol 8, Pp 120916-120922 (2020)
We consider a conceptual approach for the applicability of airborne weather radar for the sea ice/water discrimination and estimation of the sea ice age. The sea ice/water discrimination method suited for the airborne weather radar utilization is bas
Externí odkaz:
https://doaj.org/article/e8cef9037d2144098624f78bb7d9175c
Publikováno v:
Drones, Vol 6, Iss 9, p 223 (2022)
Currently, unmanned aerial vehicles (UAVs) are widely used due to their low cost and flexibility. In particular, they are used in remote sensing as airborne platforms for various instruments. Here, we investigate the capability of a conical scanning
Externí odkaz:
https://doaj.org/article/037e16b486cf42809be6a995f21817e2
Publikováno v:
Sensors, Vol 22, Iss 11, p 4016 (2022)
The optimization of normalized radar cross-section (NRCS) sampling by a scatterometer allows an increase in the accuracy of the wind retrieval over the water surface and a decrease in the time of the measurement. Here, we investigate the possibility
Externí odkaz:
https://doaj.org/article/bac16d5edf8f4521a30f8b0bba6565b1
Autor:
Alexey Nekrasov, Alena Khachaturian
Publikováno v:
Remote Sensing, Vol 13, Iss 24, p 5165 (2021)
Extension of the existing airborne radars’ applicability is a perspective approach to the remote sensing of the environment. Here we investigate the capability of the rotating-beam radar installed over the fuselage for the sea surface wind measurem
Externí odkaz:
https://doaj.org/article/83d36105746c44d2894453a0fc8afee4
Publikováno v:
Remote Sensing, Vol 12, Iss 20, p 3382 (2020)
Following the mission science plan of EPS/Metop-SG C-band scatterometer for 2023–2044, we consider the potential application of the sea ice/water discrimination method based on the minimum statistical distance of the measured normalized radar cross
Externí odkaz:
https://doaj.org/article/b54a0f52e6b04889995afdddcd7027b9
Publikováno v:
Remote Sensing, Vol 11, Iss 21, p 2518 (2019)
We consider sea ice and water microwave backscatter features at the C-band with vertical transmit and receive polarization and present a method for sea ice/water discrimination using a multiple fixed fan-beam satellite scatterometer. The method is ba
Externí odkaz:
https://doaj.org/article/4c99110cf0ae47cc9e179e448b4d5fb6
Autor:
Alexey Nekrasov, Alena Khachaturian, Evgeny Abramov, Dmitry Popov, Oleg Markelov, Viktor Obukhovets, Vladimir Veremyev, Mikhail Bogachev
Publikováno v:
Remote Sensing, Vol 10, Iss 10, p 1501 (2018)
We consider different antenna configurations, ranging from simple X-configuration to multi-beam star geometries, for airborne scatterometric measurements of the wind vector near the ocean surface. For all geometries, track-stabilized antenna configur
Externí odkaz:
https://doaj.org/article/28b26fdf6aaa469a93629bb54e050429
Autor:
Alexey Nekrasov, Alena Khachaturian, Mária Gamcová, Pavol Kurdel, Viktor Obukhovets, Vladimir Veremyev, Mikhail Bogachev
Publikováno v:
Remote Sensing, Vol 9, Iss 9, p 887 (2017)
We suggest a conceptual approach to the measurement of the near-surface wind vector over water using a Doppler navigation system, in addition to its standard navigation capabilities. We consider a Doppler navigation system with a track-stabilized ant
Externí odkaz:
https://doaj.org/article/1254deff8d7c4981a249a17729aec8b3