基于机载X-SAR海浪监测系统的设计

Design of Ocean Wave Monitoring System Based on Airborne X-SAR

基于机载X波段合成孔径雷达设计了一套低空机载海浪监测系统。首先在对海浪微波散射和机载合成孔径雷达成像原理进行分析的基础上,设计出海浪监测系统的总体架构;其次研究合成孔径雷达的成像算法,通过建立仿真模型,反演出海浪谱,最后测量出海浪浪高、海浪波长等主要信息,提供给飞行员用来判断飞机是否具备在海面上降落的安全条件。同时,对机载SAR的运动补偿等技术问题进行了相关的探讨,为系统功能的进一步开发和应用做了部分准备。

The system is designed to monitor a low-altitude airborne ocean wave which based on the X-band airborne synthetic aperture radar.Firstly,based on the analysis of microwave scattering of ocean wave and imaging principle of airborne synthetic aperture radar,the overall design of the ocean wave monitoring system and the system framework are given.Secondly,the synthetic aperture radar imaging algorithm is studied,a simulation model is founded and the spectrum of ocean wave is retrieved.Finally,wave height,wavelength and other major information are showed on display in the cabin and are provided to the pilots to judge whether the security conditions are suitable for the plane landing on the sea or not.At the same time,the motional compensation of airborne SAR and related to other technical issues are both researched,which are prepared for further development and application of the system.