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Content Provider | IET Digital Library |
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Author | Xin, Li Peng, Zhao Penglang, Shui Xiaoyun, Xia Shuwen, Xu |
Abstract | Wind direction factor, as a part of some empirical sea clutter models of the normalised radar cross-section (NRCS), is closely related to wind direction angle, grazing angle and radar wavelength. The use of the low-grazing-angle (LGA) sea clutter measured by UHF-band radar on the Lingshan island to discuss the characteristic of the wind direction factor is investigated. The results indicate that the upwind-to-crosswind ratio of NRCS, which is calculated by the empirical model, could not provide a good fit for grazing angles <10°. It was found that the ratio obtained from measured data varies with the sea state (SS) at the same grazing angle, conversely the empirical models was constant. Based on deep analysis of the results, we finally find out the influence of SS could not be ignored. In addition, some suggestions to improve sea clutter model of littoral environments were proposed for practical applications. |
Starting Page | 6885 |
Ending Page | 6888 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 20, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/20 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0493 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-07-11 |
Access Restriction | Open |
Rights License | Creative Commons Attribution -Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) |
Subject Keyword | Atmospheric Technique Atmospheric/ionospheric/magnetospheric Technique And Equipment Empirical Model Grazing Angle Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Littoral Environments Low-grazing-angle Sea Clutter Marine Radar Normalised Radar Cross-section Radar Clutter Radar Cross Section Radar Equipment Radar Theory Radar Wavelength Remote Sensing by Radar Sea Clutter Model Sea State System And Application UHF-band Radar Wind Wind Direction Angle Wind Direction Factor Winds And Their Effect in The Lower Atmosphere |
Content Type | Text |
Resource Type | Article |
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