本文選題：無線射頻干擾 + 微波輻射��； 參考：《海洋學(xué)報》2017年11期

【摘要】：SMOS衛(wèi)星數(shù)據(jù)發(fā)布以來,相關(guān)學(xué)者針對海表鹽度數(shù)據(jù)開展了大量的真實性檢驗工作,但是在受無線射頻干擾(RFI)影響海域開展的相關(guān)工作很少。本文以西太平洋海域為研究區(qū)域,選擇合理的時空匹配窗口,將WOD13實測海表鹽度數(shù)據(jù)與SMOS衛(wèi)星單軌海表鹽度數(shù)據(jù)進行數(shù)據(jù)匹配,采用統(tǒng)計學(xué)方法開展SMOS衛(wèi)星數(shù)據(jù)真實性檢驗,并分析RFI對SMOS衛(wèi)星數(shù)據(jù)的影響。結(jié)果表明,SMOS衛(wèi)星受分布在西太平洋沿岸射頻干擾源的影響,RFI污染高風(fēng)險區(qū)單軌L2數(shù)據(jù)準確度相對較低,最優(yōu)僅為3.45,RFI污染低風(fēng)險區(qū)的衛(wèi)星數(shù)據(jù)準確度最優(yōu)為1.07,可見,RFI對單軌衛(wèi)星數(shù)據(jù)準確度的影響很大,最終導(dǎo)致西太平洋海域西部大面積海域數(shù)據(jù)缺失,尤其是中國近海海域,如何檢測和減緩RFI對衛(wèi)星數(shù)據(jù)的影響是亟待解決的問題。
[Abstract]:Since the publication of SMOS satellite data, scholars have carried out a lot of authenticity verification work on sea surface salinity data, but few work has been done in the sea area affected by radio frequency interference. In this paper, the western Pacific Ocean is chosen as the study area, and a reasonable temporal and spatial matching window is chosen to match the WOD13 measured sea surface salinity data with the SMOS satellite monorail sea surface salinity data. The authenticity of the SMOS satellite data is verified by statistical method. The influence of RFI on SMOS satellite data is analyzed. The results show that the SMOS satellite is affected by the radio frequency interference sources along the western Pacific coast, and the accuracy of L2 data in the high risk area of RFI pollution is relatively low. The optimal accuracy of satellite data in the low risk area of low risk of pollution is only 3.45 渭 m RFI is 1.07. it can be seen that RFI has a great influence on the accuracy of monorail satellite data, resulting in the absence of data in the western Pacific Ocean, especially in the offshore waters of China, in the western part of the Pacific Ocean, especially in the offshore waters of China. How to detect and mitigate the influence of RFI on satellite data is an urgent problem to be solved.
【作者單位】： 國家海洋環(huán)境監(jiān)測中心海域資源環(huán)境動態(tài)監(jiān)管中心;青島大學(xué)物理科學(xué)學(xué)院;上海海洋大學(xué)海洋科學(xué)學(xué)院;
【基金】：國家重點研發(fā)計劃資助(海洋環(huán)境安全保障專項——鹽度計海洋信息提取技術(shù)(2016YFC1401006)) 國家自然科學(xué)基金(61273307)
【分類號】：P715.6
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本文編號：1910485