Zobrazeno 1 - 10
of 258
pro vyhledávání: '"Vector velocity"'
Akademický článek
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Publikováno v:
Remote Sensing, Vol 15, Iss 15, p 3784 (2023)
A new method for measuring the vector velocity of meteoroids using meteor head echoes is proposed in this study. The lateral velocity is determined by utilizing the phase interference measurement between channels, while the radial velocity is obtaine
Externí odkaz:
https://doaj.org/article/89cf59e25d6248939b5a630f834aeba2
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 4427-4440 (2021)
Vessel speed and heading are two important kinematic parameters describing its state of motion. However, due to low spatial resolution of a compact high-frequency surface wave radar (HFSWR), vessel speed and heading cannot always be accurately estima
Externí odkaz:
https://doaj.org/article/6e6315f9e61947879ce19b5bf6f85f3e
Publikováno v:
Journal of the Korean Institute of Electromagnetic Engineering and Science, Vol 19, Iss 3, Pp 159-165 (2019)
This paper proposes a modified stripmap synthetic aperture radar (SAR) signal processing algorithm with an X-band SAR system, using the practical measurement results of automobile-based SAR (Auto-SAR). The quality of the image is degraded due to an u
Externí odkaz:
https://doaj.org/article/3eddbd89c8634e87862aee875de39957
Akademický článek
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In this work, students were studied how to solve the problems that arise when expressing the equations of motion in different coordinate systems using interactive methods. Connections between the coordinate system, the radius vector, the velocity vec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09b34a514022eed880b4e653a24cd197
Publikováno v:
Applied Sciences, Vol 10, Iss 15, p 5365 (2020)
Ultrasound vector Doppler techniques for three-dimensional (3-D) blood velocity measurements are currently limited by low temporal resolution and high computational cost. In this paper, an efficient 3-D high-frame-rate vector Doppler method, which es
Externí odkaz:
https://doaj.org/article/0b41d6e2ca7b4d17a2799097f49ad45e
Akademický článek
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Autor:
Peter Møller Hansen, Kristoffer Lindskov Hansen, Mads Møller Pedersen, Theis Lange, Lars Lönn, Jørgen Arendt Jensen, Michael Bachmann Nielsen
Publikováno v:
Ultrasound International Open, Vol 04, Iss 03, Pp E79-E84 (2018)
Purpose Atherosclerotic arteries are challenging to evaluate quantitatively using spectral Doppler ultrasound because of the turbulent flow conditions that occur in relation to the atherosclerotic stenoses. Vector velocity ultrasound is angle indepen
Externí odkaz:
https://doaj.org/article/32060014c2674261a7c08bad0e777839
Publikováno v:
Journal of the Korean Institute of Electromagnetic Engineering and Science, Vol 19, Iss 3, Pp 159-165 (2019)
This paper proposes a modified stripmap synthetic aperture radar (SAR) signal processing algorithm with an X-band SAR system, using the practical measurement results of automobile-based SAR (Auto-SAR). The quality of the image is degraded due to an u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::040c732357fbae28d2552bb6600bdf58
https://doi.org/10.26866/jees.2019.19.3.159
https://doi.org/10.26866/jees.2019.19.3.159