Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Hanwei Sun"'
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1359 (2024)
The proposed “Guanlan” ocean science satellite, led by China’s Laoshan Laboratory, includes an interferometric radar altimeter (IRA) as a key payload. As an integral part of its development, an airborne IRA experiment was conducted on 6 Novembe
Externí odkaz:
https://doaj.org/article/54e7af3ef2fb44798ed3d962a6320bfb
Autor:
Yan WANG, Lihong KANG, Jie LIU, Hui KUANG, Hanwei SUN, Ke CHEN, Xuan WANG, Haifeng YU, Xilong SUN, Pengnan ZHENG, Shuhao LIU, Tianzhu YI, Lei LIU, Heli GAO, Bing SUN, Running ZHANG, Zegang DING
Publikováno v:
Leida xuebao, Vol 11, Iss 6, Pp 1131-1145 (2022)
Spaceborne Synthetic Aperture Radar (SAR) can achieve various performance combinations of resolution and observation bandwidth by adjusting the working modes. The imaging swath of the traditional spaceborne SAR working mode is along the satellite orb
Externí odkaz:
https://doaj.org/article/725cee9fe5bc4cbda351b7c7273aafa9
Autor:
Liang Xiang, Yongsheng Xu, Hanwei Sun, Qingjun Zhang, Liqiang Zhang, Lin Zhang, Xiangguang Zhang, Chao Huang, Dandan Zhao
Publikováno v:
Remote Sensing, Vol 15, Iss 24, p 5699 (2023)
Determining the dynamic processes of the subsurface ocean is a critical yet formidable undertaking given the sparse measurement resources available presently. In this study, using the light gradient boosting machine algorithm (LightGBM), we report fo
Externí odkaz:
https://doaj.org/article/bb6dcec257124994938f3f48d1bfdc8c
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 11287-11296 (2021)
Short-wavelength (15–150 km) ocean phenomena are difficult to be observed by conventional altimeter due to the sampling method limited the resolution of the data. It is, therefore, the future wide-swath interferometric altimetry (WIA) missions like
Externí odkaz:
https://doaj.org/article/e186381fc5fc4e47b29030da0299b0e7
Publikováno v:
Remote Sensing, Vol 15, Iss 6, p 1717 (2023)
Due to land contamination and human activities, the sea surface height (SSH) data retrieved from altimeter coastal waveforms have poor precision and cannot provide effective information for various tasks. The along-track high-resolution characteristi
Externí odkaz:
https://doaj.org/article/848dd1c155ec428db4fca822b78b9b2d
Publikováno v:
Remote Sensing, Vol 14, Iss 24, p 6250 (2022)
Satellite radar altimeters are advanced remote sensing devices that play an important role in observing the global marine environment. Accurately estimating the noise level of altimeter in-orbit ranging data is crucial for evaluating the payload perf
Externí odkaz:
https://doaj.org/article/d2e007523a584101bf3546c3c87863c2
Publikováno v:
Remote Sensing, Vol 14, Iss 23, p 6028 (2022)
Altimetric error has always been the significant performance parameter of the interferometric radar altimeter (IRA), particularly in the observation of sub-mesoscale ocean dynamic processes in which a higher accuracy of sea surface elevation (SSE) me
Externí odkaz:
https://doaj.org/article/51df9afaeca14bcb94337ba49c751231
Autor:
Chunyong Ma, Lichao Pan, Zhiwei Qiu, Da Liang, Ge Chen, Fangjie Yu, Hanwei Sun, Daozhong Sun, Weifeng Wu
Publikováno v:
Remote Sensing, Vol 14, Iss 15, p 3578 (2022)
Ocean wave parameters (OWPs), including wave propagation direction (WPD), significant wave height (SWH), and main wave wavelength (MWW) can be typically retrieved using an interferometric imaging radar altimeter (InIRA). However, the inversion accura
Externí odkaz:
https://doaj.org/article/8825944e0ea94289bd580e30857d1b40
Autor:
Daozhong Sun, Yunhua Wang, Zhichao Xu, Yanmin Zhang, Yubin Zhang, Junmin Meng, Hanwei Sun, Lei Yang
Publikováno v:
Remote Sensing, Vol 14, Iss 12, p 2793 (2022)
The hybrid interferometric synthetic aperture radar system is a combination of an along-track configuration and cross-track configuration. Based on linear ocean wave theory, an ocean wave inversion algorithm for a hybrid interferometric synthetic ape
Externí odkaz:
https://doaj.org/article/1b256cc283184e9d82034b8d23eaafaf
Publikováno v:
Remote Sensing, Vol 14, Iss 10, p 2362 (2022)
Satellite radar altimeters have been successfully used for sea surface height (SSH) measurement for decades, gaining great insight in oceanography, meteorology, marine geology, etc. To further improve the observation precision and spatial resolution,
Externí odkaz:
https://doaj.org/article/34aa0dcad44c49fbb90d02f7fb32f934