高分辨率宽测绘带合成孔径激光雷达技术的研究

项目名称： 高分辨率宽测绘带合成孔径激光雷达技术的研究

项目编号： No.61475122

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 唐禹

作者单位： 西安电子科技大学

项目金额： 80万元

中文摘要： 合成孔径激光雷达（SAL）作为未来远距离高分辨率对地观测的理想方式。但是由于单发单收SAL系统中，高分辨率与宽测绘带的矛盾，使单发单收SAL测绘带窄而使其应用受到限制。本课题将针对限制单发单收SAL测绘带的原因，重点关注采用多发多收方式实现高分辨率宽测绘带SAL的体制，探究多发多收SAL的数据获取机制，针对不同体制下多发多收SAL的信号模型，深入研究高分辨率宽测绘带SAL的误差补偿技术和成像技术。探索适于典型应用高分辨率宽测绘带SAL的系统设计和信号技术。项目的研究成果将拓展SAL成像的概念和内涵，为未来针对典型应用的高分辨率宽测绘带系统的提出和研制提供理论和方法基础。

中文关键词： 合成孔径激光雷达成像；高分辨率；宽测绘带；误差补偿

英文摘要： Synthetic aperture ladar (SAL) is the ideal sensor for the earth observation with high resolution from the long distance. However, for the trade off the high resolution and the swath width in the single transmitter single receiver SAL system, the swath for the SAL is restricted to a narrow range. This project will study detaily the reason of the narrow swath for the single transmitter single receiver SAL, and focus on the realization of the high resolution SAL with wide swath through multiple transmitter multiple receiver method. We also research the mechanism of the data acquisition for the multiple transmitter multiple receiver SAL system and deeply study the error compansation technique and the imaging technique for the high resolution SAL with wide swath. We will develop the system design technique and signal processing technique for the typical application of the high resolution SAL with wide swath, such as the channel error compensation, the de-ambiguity algorithm, the motion compensation technique ,imaging technique and so on. The production of this project will extend the concept and the meaning of the SAL, and will present the theory and algorithm basis for the high resolution SAL with wide swath system to the typical applications in the future.

英文关键词： synthetic aperture ladar imaging;high resolution;wide swath;error compensation