一种用于海浪方向谱探测的星载微波海洋波谱仪系统

A Spaceborne Microwave Ocean Spectrometer System for Detection of Directional Wave Spectra

海浪方向谱探测在海战场环境监测、灾害预报、海洋工程建设等方面具有广泛的应用前景。高度计和合成孔径雷达是目前主要采用的星载海浪遥感测量手段,但在海浪方向谱反演能力及计算效率上难以满足要求。提出了一种利用相控阵作为馈源实现不同入射角波束的星载微波海洋波谱仪系统,介绍了其基本工作原理、系统组成和工作状态,研究了针对波谱仪的海浪方向谱反演算法,并给出了方向谱反演仿真结果。

The detection of ocean wave spectra is a promising candidate in many fields such as marine battlefield environment monitoring, disaster forecasting and ocean engineer- ing construction. Radar altimeter and synthetic aperture rader（gAR） are the primary micro- wave sensors adopted by spaceborne radar. However, they can not meet the demand in the capability of directional spectra retrieval and calculation efficiency. In this paper, a wave spectrometer is presented which operates at six incidence angles by phased-array feed. It in- troduces the measurement principle, system configuration and operating status. Based on the research of the directional spectra retrieval algorithm for the proposed system, the simulated results are given.