A highly squint stepped frequency SAR imaging algorithm

2009 ◽  
Author(s):  
L. Liu ◽  
Zegang Ding
Keyword(s):  
Imaging Algorithm ◽  
Sar Imaging ◽  
Stepped Frequency

A RELAX Based Method for Spotlight SAR Imaging

2012 ◽  
Vol 500 ◽  
pp. 362-367
Author(s):  
Xiao Zhen Ren ◽  
Yao Qin ◽  
Hong Liang Fu
Keyword(s):  
Parameter Estimation ◽  
Estimation Problem ◽  
Noisy Environment ◽  
Parameter Estimation Problem ◽  
Imaging Algorithm ◽  
Imaging Results ◽  
Sar Imaging ◽  
Simulation Results ◽  
Noisy Condition

The imaging problem of spotlight SAR is converted to a parameter estimation problem of several monochromatic signals in additive white Gaussian noisy condition in this paper. Moreover, a spotlight SAR imaging algorithm based on RELAX is presented in detail. Traditional polar format algorithm and the presented method are applied to spotlight SAR imaging respectively, and the imaging results are compared. Simulation results show that the polar format algorithm doesn’t give satisfactory imaging results, while the proposed method adapts the noisy environment better and obtains better results.

One-Stationary Bistatic Side-Looking SAR Imaging Algorithm Based on Extended Keystone Transforms and Nonlinear Chirp Scaling

2013 ◽  
Vol 10 (2) ◽  
pp. 211-215 ◽  
Author(s):  
Zhongyu Li ◽  
Junjie Wu ◽  
Wenchao Li ◽  
Yulin Huang ◽  
Jianyu Yang
Keyword(s):  
Imaging Algorithm ◽  
Sar Imaging

Range migration correction for random stepped-frequency SAR imaging

2014 ◽  
Author(s):  
Qun Zhang ◽  
Yi-chang Chen ◽  
Zhi-an Li ◽  
Yong-an Chen ◽  
Yong Wu
Keyword(s):  
Sar Imaging ◽  
Range Migration ◽  
Stepped Frequency ◽  
Range Migration Correction

scholarly journals Three-Dimensional Ground-Based SAR Imaging Algorithm Based on Keystone Formatting and Subblock

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 90118-90131
Author(s):  
Weiming Tian ◽  
Wenyu Yang ◽  
Tongxin Dang ◽  
Zheng Zhao ◽  
Xiaoxin Han
Keyword(s):  
Three Dimensional ◽  
Imaging Algorithm ◽  
Sar Imaging

Interferometric SAR imaging by transmitting stepped frequency chaotic noise signals

2015 ◽  
Author(s):  
Yunhua Zhang ◽  
Xiang Gu ◽  
Wenshuai Zhai ◽  
Xiao Dong ◽  
Xiaojin Shi ◽  
...  
Keyword(s):  
Sar Imaging ◽  
Stepped Frequency ◽  
Interferometric Sar
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