作者
Dongliang Wang, Jun Yang, Guangcai Sun, Matthew Brolly, Xin Tao, Jianhua Xiao, Guoqing Sun, Youchuan Wan, Xiaoping Xin
发表日期
2014/7/1
期刊
Photogrammetric Engineering & Remote Sensing
卷号
80
期号
7
页码范围
663-674
出版商
American Society for Photogrammetry and Remote Sensing
简介
Due to the costs, sensitivity, and export policies of many governments, universities, and research institutions, particularly in developing countries, the ability to purchase, install and maintain high-accuracy inertial navigation system (INS) and global positioning system (GPS) is restricted. This paper presents a new method for SAR imaging and interferometry using parameters estimated from raw data. First, methods for determining the order of real and imaginary parts within the raw data images, and for determining chirp rate polarity are proposed. Second, a selection of parameters, including the forward effective velocities of the sensor, the near range distance, and the squint angle, are extracted using the Doppler centroid and Doppler rate. Finally, we create single look complex (SLC) images, coherence maps, digital elevation models (DEMs), and dual-pass differential unwrapped phase maps. The level of accuracy …
学术搜索中的文章
D Wang, J Yang, G Sun, M Brolly, X Tao, J Xiao, G Sun… - Photogrammetric Engineering & Remote Sensing, 2014