Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Yaolong Qi"'
Publikováno v:
Leida xuebao, Vol 12, Iss 5, Pp 1044-1055 (2023)
An improved Synthetic Aperture Radar (SAR) imaging algorithm is proposed to address the issues of low azimuth resolution and noise interference in the sparse sampling condition. Based on the existing L1/2 regularization theory and iterative threshold
Externí odkaz:
https://doaj.org/article/2a8c07a7d7a547569672f3c67090996d
Autor:
Yuejuan Chen, Yang Liu, Yaolong Qi, Pingping Huang, Weixian Tan, Bo Yin, Xiujuan Li, Xianglei Li, Dejun Zhao
Publikováno v:
Sensors, Vol 24, Iss 15, p 4976 (2024)
With the gradual expansion of mining scale in open-pit coal mines, slope safety problems are increasingly diversified and complicated. In order to reduce the potential loss caused by slope sliding and reduce the major threat to the safety of life and
Externí odkaz:
https://doaj.org/article/b4a205e1094944c8aa1362dca22f62b5
Publikováno v:
Sensors, Vol 24, Iss 14, p 4494 (2024)
Azimuth multi-channel synthetic aperture radar (SAR) has always been an important technical means to achieve high-resolution wide-swath (HRWS) SAR imaging. However, in the space-borne azimuth multi-channel SAR system, random phase noise will be produ
Externí odkaz:
https://doaj.org/article/b41d72690c9e4603a756767727755555
Publikováno v:
Sensors, Vol 24, Iss 13, p 4240 (2024)
When using ground-based synthetic aperture radar (GB-SAR) for monitoring open-pit mines, dynamic atmospheric conditions can interfere with the propagation speed of electromagnetic waves, resulting in atmospheric phase errors. These errors are particu
Externí odkaz:
https://doaj.org/article/e34e3dd8ed7d4b65b4564899b45638c1
Publikováno v:
Sensors, Vol 24, Iss 8, p 2634 (2024)
With the acceleration of urbanisation, urban areas are subject to the combined effects of the accumulation of various natural factors, such as changes in temperature leading to the thermal expansion or contraction of surface materials (rock, soil, et
Externí odkaz:
https://doaj.org/article/719ab1127ef245c1bca54cdbc6a6f71c
Autor:
Weixian Tan, Jing Li, Ting Hou, Pingping Huang, Yaolong Qi, Wei Xu, Chunming Li, Yuejuan Chen
Publikováno v:
Sensors, Vol 24, Iss 6, p 1809 (2024)
The micro-deformation monitoring radar is usually based on Permanent Scatterer (PS) technology to realize deformation inversion. When the region is continuously monitored for a long time, the radar image amplitude and pixel variance will change signi
Externí odkaz:
https://doaj.org/article/7d80fb5b3f3a4c5a9f191d7da1df37c5
Publikováno v:
Sensors, Vol 24, Iss 4, p 1169 (2024)
As urban economies flourish and populations become increasingly concentrated, urban surface deformation has emerged as a critical factor in city planning that cannot be overlooked. Surface deformation in urban areas can lead to deformations in struct
Externí odkaz:
https://doaj.org/article/643a26ebc3d84edbb7c04933bca59d99
Publikováno v:
Sensors, Vol 24, Iss 3, p 1013 (2024)
Compared to conventional radars, arc array synthetic aperture radar (SAR) enables wide-area observation under ideal conditions. However, helicopters carrying arc array SAR platforms are generally smaller in size and more sensitive to vibration, which
Externí odkaz:
https://doaj.org/article/55251d31963644bbaf9eba412be464ca
Publikováno v:
Sensors, Vol 23, Iss 20, p 8377 (2023)
Conventional squinted sliding spotlight synthetic aperture radar (SAR) imaging suffers from substantial swath width reduction and complex processing requirements due to the continuous variation in the squint angle and the large range cell migration (
Externí odkaz:
https://doaj.org/article/4d7da5ef3ee04282b92d3e835fb2fb3d
Autor:
Yuejuan Chen, Xu Dong, Yaolong Qi, Pingping Huang, Wenqing Sun, Wei Xu, Weixian Tan, Xiujuan Li, Xiaolong Liu
Publikováno v:
Remote Sensing, Vol 15, Iss 10, p 2691 (2023)
Over-exploitation of coal mines leads to surface subsidence, surface cracks, collapses, landslides, and other geological disasters. Taking a mining area in Nalintaohai Town, Ejin Horo Banner, Ordos City, Inner Mongolia Autonomous Region, as an exampl
Externí odkaz:
https://doaj.org/article/5ac10f40f4774e799730684cb21fed68