高洪興; 楊東凱; 張波; 王強; 王峰

doi:10.11999/JEIT160765

基于GNSS衛(wèi)星反射信號的海冰厚度探測

doi: 10.11999/JEIT160765 cstr: 32379.14.JEIT160765

基金項目:

國家自然科學(xué)基金(61171070)

計量
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2016-07-20
- 修回日期: 2016-12-23
- 刊出日期: 2017-05-19

Remote Sensing of Sea Ice Thickness with GNSS Reflected Signal

Funds:

The National Natural Science Foundation of China (61171070)

摘要

摘要: 為了解決近海岸海冰探測的難題，該文針對岸基平臺提出一種利用GNSS衛(wèi)星反射信號進(jìn)行海冰厚度探測的方法。該方法首先計算GNSS衛(wèi)星反射信號和直射信號的強度比，即反射信號相關(guān)功率和直射信號相關(guān)功率的比值；然后根據(jù)海冰厚度的經(jīng)驗?zāi)Ｐ偷玫胶１穸鹊男畔?。為了驗證該方法的有效性，在遼寧鲅魚圈區(qū)進(jìn)行的實驗中對GNSS衛(wèi)星反射信號進(jìn)行了長期觀測，結(jié)果表明，GNSS衛(wèi)星反射信號反演的海冰厚度值為10~20 cm，與同比觀測值之間具有很好的一致性。
- GNSS衛(wèi)星反射信號 /
- 海冰厚度 /
- 強度比 /
- 經(jīng)驗?zāi)Ｐ?/a>
Abstract: To detect the sea ice in small-scale fixed sea area, a shore-based sea ice detecting method is developed using GNSS reflected signal. Firstly, the method needs to calculate the intensity ratio of GNSS satellite reflected signal and direct signal, which is the ratio of the reflected signal correlation power and the direct signal correlation power. Then the sea ice thickness is obtained based on the empirical model. Preliminary analysis of the GNSS reflected signal collected during the sea ice experiment can obtain sea ice thickness which is 10~20 cm and shows good agreement between the GNSS-R sea ice thickness.

Key words:
GNSS satellite reflected signal /

Sea ice thickness /

Intensity ratio /

Empirical model

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