电子与信息学报
電子與信息學報
전자여신식학보
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY
2013年
8期
1800-1805
,共6页
王珂%洪峻%张问一%张月婷%惠延波%明峰
王珂%洪峻%張問一%張月婷%惠延波%明峰
왕가%홍준%장문일%장월정%혜연파%명봉
合成孔径雷达%反演%邻近岸%海面风场
閤成孔徑雷達%反縯%鄰近岸%海麵風場
합성공경뢰체%반연%린근안%해면풍장
SAR%Retrieval%Near shore%Ocean surface wind
该文对SAR反演邻近岸海面风场的有关问题进行了深入研究。首先提出了邻近岸海面风向估计方法,在最小距离准则下利用邻近海域的风向估计所需的邻近岸海面风向。然后给出了使用 ENVISAT/ASAR 的 IM 成像模式PRI数据反演邻近岸海面风速的方法,比较了地球物理模型函数(Geophysical Model Function, GMF)模型性能,提出了海面风速分段反演算法。它们组成了完整的SAR反演邻近岸海面风场方法。通过实验、比较,验证了上述方法的有效性和合理性。
該文對SAR反縯鄰近岸海麵風場的有關問題進行瞭深入研究。首先提齣瞭鄰近岸海麵風嚮估計方法,在最小距離準則下利用鄰近海域的風嚮估計所需的鄰近岸海麵風嚮。然後給齣瞭使用 ENVISAT/ASAR 的 IM 成像模式PRI數據反縯鄰近岸海麵風速的方法,比較瞭地毬物理模型函數(Geophysical Model Function, GMF)模型性能,提齣瞭海麵風速分段反縯算法。它們組成瞭完整的SAR反縯鄰近岸海麵風場方法。通過實驗、比較,驗證瞭上述方法的有效性和閤理性。
해문대SAR반연린근안해면풍장적유관문제진행료심입연구。수선제출료린근안해면풍향고계방법,재최소거리준칙하이용린근해역적풍향고계소수적린근안해면풍향。연후급출료사용 ENVISAT/ASAR 적 IM 성상모식PRI수거반연린근안해면풍속적방법,비교료지구물리모형함수(Geophysical Model Function, GMF)모형성능,제출료해면풍속분단반연산법。타문조성료완정적SAR반연린근안해면풍장방법。통과실험、비교,험증료상술방법적유효성화합이성。
In this paper, related issues of SAR retrieving ocean surface wind in near shore are discussed thoroughly. First, a method of estimating ocean surface wind direction in near shore is proposed, which uses wind direction of closed ocean surface to estimate needed ocean surface wind direction in near shore based on minimum distance principle. Second, a retrieval method of ocean surface wind speed in near shore using ENVISAT/ASAR IM imaging mode PRI data is given, which Geophysical Model Function (GMF) models’ capability is compared and a segment retrieval algorithm of ocean surface wind speed is proposed. They constitute an integral method of SAR retrieving ocean surface wind in near shore. By experiment and comparison, the effectiveness and rationality of above mentioned method are verified.