Zobrazeno 1 - 10
of 1 183
pro vyhledávání: '"RADAR IMAGE"'
Publikováno v:
Leida xuebao, Vol 13, Iss 6, Pp 1170-1183 (2024)
Ground Penetrating Radar (GPR) image detection currently faces challenges such as low accuracy, false detections, and missed detections. To overcome these challenges, we propose a novel model referred to as GDS-YOLOv8n for detecting common undergroun
Externí odkaz:
https://doaj.org/article/02d80bd1aca8430192731f972b455520
Autor:
S. R. Heister, V. V. Kirychenka
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 5, Pp 53-61 (2024)
The inverse antenna aperture synthesis technology used to construct a radar image of an aircraft’s propellers has shown high efficiency. The radar image allows to visualize the blades of the rotors included in the functional group (traction rotors
Externí odkaz:
https://doaj.org/article/6bb2c4e935344d2abcf0aa331d862241
Autor:
S. R. Heister, V. V. Kirichenko
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 27, Iss 3, Pp 68-80 (2024)
Introduction. Radar images of aircraft propellers can significantly improve the quality of their recognition and protection against simulating interference. Such images can be obtained using algorithms based on an inverse antenna aperture synthesis.
Externí odkaz:
https://doaj.org/article/3d8ef756d0e64890bcbc27f04162ec42
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 3, Pp 61-68 (2024)
Adaptive methods have been developed for generating a radar image of a probed surface area. A block diagram of a subsurface sounding radar is described. The results of modeling and experimental studies are presented. Their use makes it possible to de
Externí odkaz:
https://doaj.org/article/5a39b784492143b3bc1373193d28b860
Autor:
Xiaolong CHEN, Xiaoyang HE, Zhenhua DENG, Jian GUAN, Xiaolin DU, Wei XUE, Ningyuan SU, Jinhao WANG
Publikováno v:
Leida xuebao, Vol 13, Iss 3, Pp 501-524 (2024)
Weak target signal processing is the cornerstone and prerequisite for radar to achieve excellent detection performance. In complex practical applications, due to strong clutter interference, weak target signals, unclear image features, and difficult
Externí odkaz:
https://doaj.org/article/77292bb9860749e282b27ae14596ef17
Autor:
S. V. Kozlov, V. V. Radionovich
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 21, Iss 6, Pp 70-74 (2024)
It is shown that during digital beamforming in a subaperture antenna array of highly informative space radars with synthetic aperture, it is necessary to provide a procedure for equalizing the time delays of the subaperture output signals for transmi
Externí odkaz:
https://doaj.org/article/f106aa7ee7564a22b6b8a504e58f9c95
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 13506-13522 (2024)
The performance of marine radar target detection is largely affected by the intricate and dynamic space–time variations of sea clutter signals, which cause substantial numbers of false and missed alarms. To improve the target detection performance
Externí odkaz:
https://doaj.org/article/6d5c8c7bb2fd43fb8cb610b8b4c9a001
Toward automated hail disaster weather recognition based on spatio-temporal sequence of radar images
Publikováno v:
Demonstratio Mathematica, Vol 57, Iss 1, Pp 104747-970 (2024)
Hail, an intense convective catastrophic weather, is seriously hazardous to people’s lives and properties. This article proposes a multi-step cyclone hail weather recognition model, called long short-term memory (LSTM)-C3D, based on radar images, i
Externí odkaz:
https://doaj.org/article/6be0b18308b240f3bf93ebbb629f4cd8
Autor:
S. N. Gusev, A. V. Moroz
Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 22, Iss 4, Pp 145-157 (2023)
The article presents the main considerations for determining the tangential velocity of high-speed vessels in the digital signal processing system of a space synthetic aperture radar with an amplitude-phase program discriminator in the azimuth channe
Externí odkaz:
https://doaj.org/article/670f8c07a3ad43619ee1ccf19e53bfd6