shily123 / sar-imaging--csa

The matlab codes of SAR imaging include: These algorithms are tested on Matlab 2015a. You can run main.m to generate the imaging results of ideal point targets.

SAR Imaging——chirp scaling algorithm(CSA)

1.Run

You can run the following three .m programs directly on Matlab. These programs are tested on Matlab 2015a.

1）Final_cs_broadside.m :

working conditions：height of flying platform is 0；broadside mode；slant plane imaging （不考虑高度、正侧视、斜平面成像、cs算法）

2）Final_cs_squint5.m :

working conditions：height of flying platform is 0；squint angle is 5 degree；slant plane imaging. The imaging results are poor for the range sampling rate (Fs = 200e6) is too low, which leads to the folding of two-dimension spectrum. 不考虑高度、斜视 5 度、斜平面cs成像算法，效果不好；因为二维频谱折叠，需提高距离向采样率 Fs

Improved versions for squint mode imaging:

3)Final_cs_squint5_new.m :

working conditions：height of flying platform is 0；squint angle is 5 degree；slant plane imaging; Fs = 400e6. 不考虑高度、斜视 5 度、斜平面cs成像算法，效果好

2.Note

You can change the value of "nan" (in the .m programs), making it satisfy the length of a synthetic aperture.