摘要
SAR处理实现了遥感数据从光学平台到数字信号处理器(DSP)的跨越式发展,通过数字处理使SAR图像的获取变得十分便捷,它既能保证较大动态范围内的无失真输出,也保留了精确的相位信息,同时信号处理不受物理条件的限制。数据的相关特性使SAR在图像结构与数据处理上与其他遥感技术截然不同。对于这样一种系统信号的最恰当描述方式是复数方程,因而其处理手段应该是基于信号的。本文通过详细对SAR处理算法的距离多普勒算法理论研究,并利用相干信号处理术语给予表述。
SAR processing of remote sensing data from optical platform to the digital signal processor （DSP） span type development, through digital processing make SAR image acquisition becomes very convenient, it can ensure a larger dynamic range without distor- tion of output, also retained the precise phase information, at the same time signal processing without physical conditions limit. Data correlation properties make SAR structures in the image and data processing on different with other remote sensing technology. For such a system signal of the most appropriate description is complex equations, so the treatment methods should be based on signal. This article details on the SAR algorithm distance Doppler algoritlnm theory, and the use of coherent signal processing terms gives ex- presslon
出处
《测绘与空间地理信息》
2013年第11期144-147,共4页
Geomatics & Spatial Information Technology
