Title :
A stepped frequency chirp scaling algorithm for high resolution SAR imaging
Author :
Zhai, Wenshuai ; Zhang, Yunhua
Author_Institution :
Key Lab. of Microwave Remote Sensing, Grad. Univ. of Chinese Acad. of Sci., Beijing, China
Abstract :
A radar imaging method which combining stepped frequency chirp signal (SFCS) processing and chirp scaling imaging algorithm to achieve high resolution in both range and azimuth direction is introduced. We use Chirp Scaling algorithm to process the sub-pulses of the same ordinal in each SFCS burst to form a series of low range resolution 2D images and then synthesize the images in frequency domain to realize high range resolution. This approach is verified by simulations as well as experimental results.
Keywords :
radar imaging; synthetic aperture radar; 2D image; azimuth direction; chirp scaling imaging algorithm; frequency domain; high resolution SAR imaging; radar imaging method; stepped frequency chirp scaling algorithm; stepped frequency chirp signal processing; Azimuth; Chirp; Image resolution; Radar imaging; Signal processing algorithms; Signal resolution; Chirp Scaling; SAR imaging; Stepped Frequency; bandwidth synthesis; high resolution;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1351-4
