Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Caipin Li"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 68-83 (2024)
In recent years, geosynchronous synthetic aperture radar (GEO SAR) has attracted many scientists to carry out relevant research. Its research is in-depth and gradually maturing. However, conventional GEO SAR has the problems of great influence by the
Externí odkaz:
https://doaj.org/article/4160d077266b4ca7a8386de3a1c4e432
Autor:
Weihua Zuo, Caipin Li, Sheng Zhang, Dongtao Li, Wencan Peng, Jinwei Li, Dong You, Chongdi Duan
Publikováno v:
Remote Sensing, Vol 16, Iss 9, p 1552 (2024)
Single-phase center multiple azimuth beam (SPC MAB) mode is an effective method for high-resolution wide-swath (HRWS) SAR imaging. The traditional azimuth spectrum reconstruction method for SPC MAB mode is based on the combination scheme from which f
Externí odkaz:
https://doaj.org/article/59d856c0a2e2449da19bade85d712f81
Autor:
Junjie WU, Zhichao SUN, Zheng LV, Jianyu YANG, Caipin LI, Huarui SUN, Tianfu CHEN, Liangbo ZHAO, Hang REN
Publikováno v:
Leida xuebao, Vol 12, Iss 1, Pp 13-35 (2023)
Bi/multistatic Synthetic Aperture Radar (SAR) using spaceborne illuminator utilizes spaceborne platforms as transmitters and satellites, near-space vehicles, aircraft, and ground platforms as receivers, which allows high-resolution imaging of ground
Externí odkaz:
https://doaj.org/article/1d35f6fe6d234abe8cc9f9a10ada94a2
Publikováno v:
IEEE Access, Vol 11, Pp 20063-20078 (2023)
Bistatic synthetic aperture radar (BiSAR) is an extended and complementary observation method to conventional monostatic SAR remote sensing. When high range and azimuth resolution are required in BiSAR, the transmitting platform, i.e., the LEO satell
Externí odkaz:
https://doaj.org/article/77d3149804e74be688acd8c446026c43
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Different from ground-based or airborne early warning radar, space-based radar (SBR) possesses large coverage capability. As a result, several discrete strong scatter points from the antenna side-lobe shares the same feature with the real targets in
Externí odkaz:
https://doaj.org/article/1cd47025996a49e3a1f1dde6fa083fa7
Publikováno v:
Remote Sensing, Vol 15, Iss 11, p 2829 (2023)
Distributed radar systems promise to significantly enhance target localization by virtue of the superiority of multi-view observations from widely separated radars, compared to their monostatic counterparts. Nevertheless, when the radar number is lim
Externí odkaz:
https://doaj.org/article/6676268bd7f44ac1a5f8cb585c940774
Publikováno v:
IEEE Access, Vol 8, Pp 89708-89719 (2020)
For future ultra-high resolution spaceborne SAR missions, large beam-steering capability and large antenna aperture are demanded to increase the azimuth resolution and to maintain the sensor sensitivity simultaneously. Thus, large-deployable antenna
Externí odkaz:
https://doaj.org/article/8684f25b3e2d4da4bf5d84ebe7931331
Publikováno v:
IEEE Access, Vol 8, Pp 209267-209277 (2020)
Surveillance radar is confronted with serious two-dimensional ambiguity (i.e., range dimension and velocity dimension) and low signal-to-noise ratio (SNR) problems in the time sensitive (TS) target detection process, which may result in the deteriora
Externí odkaz:
https://doaj.org/article/a4c322f9e608498d9fc690de7c23e412
Publikováno v:
Remote Sensing, Vol 14, Iss 22, p 5770 (2022)
The speed and direction of a missile shifts sharply in the dive phase, making the azimuth frequency modulation (FM) rate change with the azimuthal position, leading to azimuth ambiguities and image distortion. To solve this problem, a modified nonlin
Externí odkaz:
https://doaj.org/article/fe27abeaf89243abb6bcf3e7197ab1c5
Publikováno v:
Remote Sensing, Vol 14, Iss 16, p 3861 (2022)
The orbital angular momentum (OAM) of a vortex electromagnetic wave (VEW) has gained attention as a newly explored information carrier. OAM modes provide vortex azimuth resolution, which is a new degree of freedom (DOF) in radar application. Due to t
Externí odkaz:
https://doaj.org/article/d45114f0d10244e6bf1a2ab90ab2db5f