利用Seasat SAR遥感图象分析海浪的一种新方法
A NEW METHOD FOR MEASURING OCEAN WAVE FROM SEASAT SAR REMOTE SENSING IMAGE
-
摘要: 本文提出一种从seasat合成孔径雷达SAR遥感图象中分析海浪波长和方向的新方法。该方法首先对遥感图象进行定向取样;然后进行一维傅氏变换,求出海浪相关函数;最后求出海浪波长和方向。这种新方法的精度和运算速度明显优于通常采用的二维傅氏变换分析法。Abstract: A new method for measuring ocean wave length and direction from Seaset synthetic aperture radar (SAR) remote sensing image is presented in the paper. In the method, a ocean wave image is sampled in certain directions, the samples are then analyzed by using one dimensional Fourier transformation to calculate the ocean wave correlation function. At last the ocean wave length and direction are determined from the ocean wave correlation function. The method is better than the traditional two dimensional Fourier transformation method in both consuming time and precision.
-
D. A. Ross著,李允武译,海洋学导论,科学出版社,1977年,第133页.[2]E. B. Kraus著,山东海洋学院译,大气与海洋的相互作用,科学出版社,1972年,第122页.[3]永田豐,彦拆繁雄、官崎正衛著,海洋物理(Ⅲ),科学出版社,1970年,第86-91页.[4]李经虎,声纳信号处理,海洋出版社,1984年.[5]Wu Jian-Kan, J. O. Thomas, The Measurement of Ocean Wave from Seasat Synthetic Apreture Radar Imagery,中国科学技术大学学报, 1981年增刊, 第1-6页.[6]T. D. Allan, T. H. Guymer, International Journal of Remote Sensing, 5 (1984) 2, 379-408.[7]F. S. Grauford著, 卢鹤绂译, 波动学(下),科学出版社,1968年,第407-417页. -
计量
- 文章访问数: 2454
- HTML全文浏览量: 154
- PDF下载量: 570
- 被引次数: 0
下载:
