Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Xuejiao WEN"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9974-9988 (2024)
The rotation of targets in high-resolution synthetic aperture radar (SAR) images results in complex and nonlinear micro-Doppler modulation of SAR returns, exhibiting distinct and diverse imaging characteristics under different conditions. This poses
Externí odkaz:
https://doaj.org/article/94980120ae764d3f978ccf5efd55a911
Publikováno v:
Frontiers in Oncology, Vol 12 (2023)
BackgroundVitiligo-like depigmentation is a common skin adverse event in patients receiving immunotherapy for malignant melanoma, but has been rarely reported in patients with non-melanoma malignancies. To better understand this immune-related advers
Externí odkaz:
https://doaj.org/article/3666bfe408e54e1ca1178ff9d305bbc8
Publikováno v:
Leida xuebao, Vol 9, Iss 5, Pp 878-885 (2020)
An azimuth multi-channel Synthetic Aperture Radar (SAR) can be used to obtain high-resolution wide-swath SAR images. Accurate estimation of the phase error between channels is the key to ensuring image quality. In this study, we present a channel pha
Externí odkaz:
https://doaj.org/article/4f56c2f23bd041b78208c5f510c5b16a
Autor:
Xuejiao Wen, Xiaolan Qiu
Publikováno v:
Sensors, Vol 20, Iss 8, p 2201 (2020)
The development of high resolution SAR makes the influence of moving target more prominent, which results in defocusing and other unexplained phenomena. This paper focuses on the research of imaging signatures and velocity estimation of turning motio
Externí odkaz:
https://doaj.org/article/9234a8cfb2d44f9eae9623b2ba49cd80
Publikováno v:
Sensors, Vol 18, Iss 12, p 4221 (2018)
When the original echo data of SAR are saturated for quantization, the performance of the commonly used block adaptive quantization (BAQ) algorithm will be degraded, which will degrade the imaging quality. This article proposes an improved Llody-Max
Externí odkaz:
https://doaj.org/article/6afecddc04b4409da5dd5bb909de93c6
A Range Ambiguity Suppression Processing Method for Spaceborne SAR with Up and Down Chirp Modulation
Publikováno v:
Sensors, Vol 18, Iss 5, p 1454 (2018)
Range ambiguity is one of the factors which affect the SAR image quality. Alternately transmitting up and down chirp modulation pulses is one of the methods used to suppress the range ambiguity. However, the defocusing range ambiguous signal can stil
Externí odkaz:
https://doaj.org/article/05615d9fb1934190ab84f764ee747b4a
Publikováno v:
IGARSS
The super-resolution algorithm can break through the theoretical resolution limit of radar and improve image resolution by several times under the condition of hardware parameter limitation. The improved resolution can see more details of the image,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20503a43968b52bbf1ba6c47d0518c77
https://doi.org/10.1109/igarss47720.2021.9554997
https://doi.org/10.1109/igarss47720.2021.9554997
Autor:
Xiaolan Qiu, Xuejiao Wen
Publikováno v:
Sensors, Vol 20, Iss 2201, p 2201 (2020)
Sensors
Volume 20
Issue 8
Sensors (Basel, Switzerland)
Sensors
Volume 20
Issue 8
Sensors (Basel, Switzerland)
The development of high resolution SAR makes the influence of moving target more prominent, which results in defocusing and other unexplained phenomena. This paper focuses on the research of imaging signatures and velocity estimation of turning motio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75e2c3b9d2f6c6d1a2f33421e860bebd
https://www.mdpi.com/1424-8220/20/8/2201
https://www.mdpi.com/1424-8220/20/8/2201
Publikováno v:
Sensors, Vol 18, Iss 12, p 4221 (2018)
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 12
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 12
When the original echo data of SAR are saturated for quantization, the performance of the commonly used block adaptive quantization (BAQ) algorithm will be degraded, which will degrade the imaging quality. This article proposes an improved Llody-Max
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df1fc522a472e966ec564ed191f925d3
https://www.mdpi.com/1424-8220/18/12/4221
https://www.mdpi.com/1424-8220/18/12/4221