Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Degui YANG"'
Publikováno v:
Frontiers in Oncology, Vol 13 (2023)
BackgroundIn cervical cancer (CC), the involvement of pelvis lymph nodes is a crucial factor for patients’ outcome. We aimed to investigate the value of conventional magnetic resonance imaging (MRI) combined with diffusion-weighted imaging (DWI) an
Externí odkaz:
https://doaj.org/article/cfaa641a9204438aa53a479d2debd204
Publikováno v:
Leida xuebao, Vol 11, Iss 6, Pp 1098-1109 (2022)
The radar echo signal may experience substantial two-dimensional spatial variance due to the nonlinear Synthetic Aperture Radar (SAR) trajectory. The traditional frequency-domain imaging algorithms based on the assumption of azimuth translational inv
Externí odkaz:
https://doaj.org/article/c8eba5e0f4614f1a83a1fa56dc60f9d0
Publikováno v:
Remote Sensing, Vol 16, Iss 5, p 877 (2024)
Detecting multiple human targets in indoor scenarios using ultra-wideband (UWB) radar usually involves false detection results caused by the secondary reflections, which might reduce the target detection accuracy and cause a more severe deterioration
Externí odkaz:
https://doaj.org/article/f67384c568624ec0852ae3c427bf476b
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 7148-7158 (2021)
Synthetic aperture radar (SAR) images are inherently degraded by the speckle noise due to the coherent imaging, which may affect the performance of subsequent image analysis task. To address this problem, a weighted sparse representation-based method
Externí odkaz:
https://doaj.org/article/a09617ee3be6446caf02f03d538757e2
Publikováno v:
Advances in Difference Equations, Vol 2020, Iss 1, Pp 1-12 (2020)
Abstract Let c be a nonzero constant and n a positive integer, let f be a transcendental meromorphic function of finite order, and let R be a nonconstant rational function. Under some conditions, we study the relationships between the exponent of con
Externí odkaz:
https://doaj.org/article/9c2b204cf4934d14ad495ad6cefa5df9
Publikováno v:
IEEE Access, Vol 7, Pp 178879-178890 (2019)
The noncontact measurement of vital sign signals is useful for medical care, rescuing disaster survivors from ruins and public safety. In this paper, a novel vital sign signal extraction method based on permutation entropy (PE) and ensemble empirical
Externí odkaz:
https://doaj.org/article/0ea9dec0e82f4165991ae961c7f5a4c7
Publikováno v:
Remote Sensing, Vol 14, Iss 15, p 3678 (2022)
The high-speed movement of a ballistic target will cause folding and translation of the micro-Doppler, which will affect the extraction of micro-motion features. To address the adverse effects of high-speed movement of ballistic targets in midcourse
Externí odkaz:
https://doaj.org/article/b346e8decf2942db9e25faf9668566e3
Publikováno v:
Remote Sensing, Vol 14, Iss 15, p 3691 (2022)
The micro-movement feature is recognized as one of the practical features of space target recognition in academic circles. The separation of the micro-Doppler curve of the scattering center is the key to feature extraction and parameter estimation, w
Externí odkaz:
https://doaj.org/article/794600606ef94474badc8ed141bab187
Publikováno v:
Remote Sensing, Vol 14, Iss 14, p 3326 (2022)
It is of great significance to detect drones in airspace due to the substantial increase and regrettable misuse in the consumer market. In this paper, we establish a micro-motion theoretical model of a drone and analyze the micro-Doppler signature of
Externí odkaz:
https://doaj.org/article/c8b0f066d9be49d7a76e4cbdbccfe1bc
Publikováno v:
IEEE Access, Vol 6, Pp 57994-58003 (2018)
As a non-contact life detecting equipment of smart campus, the ultra-wide band (UWB) radar life detector is widely used in finding victims of post-disaster search and rescue. However, due to the complex detection environment and the weak life charact
Externí odkaz:
https://doaj.org/article/f13c7fa47c8f4e0a8b7dba220be8b1bc