Directional wave spectra derived from synthetic aperture radar images

Hongwei Zheng; I-fan Shen

doi:10.1117/12.466081

8 May 2003 Directional wave spectra derived from synthetic aperture radar images

Hongwei Zheng, I-fan Shen

Proceedings Volume 4892, Ocean Remote Sensing and Applications; (2003) https://doi.org/10.1117/12.466081
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

The article is devoted to exploring the synthetic aperture radar (SAR) imaging theory of the ocean waves. Due to the orbital motion of the water particles associated with the long ocean surface waves the image formation called the velocity bunching mechanism, is mainly concerned. Buoy data measured by the National Data Buoy Center (NDBC), US, for wave height spectra is also obtained. The measured wave height spectra are applied in the imaging models. The linear and quasi-linear imaging models for simulating SAR image spectra of ocean waves are explored. The validation of the quasi-linear model is strongly dominated by the range/velocity ratio R/V. However, R/V is weak to the linear model. Besides, the velocity bunching MTF is well implemented by the quasi-linear model.

Citation Download Citation

Hongwei Zheng and I-fan Shen "Directional wave spectra derived from synthetic aperture radar images", Proc. SPIE 4892, Ocean Remote Sensing and Applications, (8 May 2003); https://doi.org/10.1117/12.466081

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