Title :
MicroSAR: Calibration of X-band high resolution FMCW synthetic aperture radar (SAR)
Author :
Bhattacharya, C. ; Roy, Ashish ; Navneet, S. ; Heddallikar, A. ; Pinto, R.
Author_Institution :
Electron. Eng. Dept., DIAT, Pune, India
Abstract :
Results of recent international experiments to produce low cost high resolution imaging radars by utilizing FMCW mode of transmission are very encouraging. In this paper, we report the calibration work done in India to demonstrate high resolution synthetic aperture radar (SAR) by frequency modulated continuous wave (FMCW) processing at X-band. We devise a railSAR experiment from rooftop of a building to calibrate the synthetic aperture length on ground. We measure the high azimuth resolution produced by processing the ground backscattering in two dimensions. Calibration results are tested by imaging trihedral corner reflectors of 50cm and 25cm in size and the resultant SAR images are produced in the paper.
Keywords :
CW radar; FM radar; calibration; radar imaging; synthetic aperture radar; X-band high resolution FMCW radar; continuous wave radar; frequency modulated radar; high resolution imaging radar; microSAR calibration; synthetic aperture radar; trihedral corner reflector imaging; Azimuth; Frequency modulation; Image resolution; Radar antennas; Radar imaging; Synthetic aperture radar; FMCW; azimuth resolution; corner reflector; microSAR; railSAR;
Conference_Titel :
Microwave and RF Conference (IMaRC), 2014 IEEE International
Conference_Location :
Bangalore
DOI :
10.1109/IMaRC.2014.7039037
