Title :
Combining a frequency-scanned antenna and a short-pulse radar for 2-D imaging
Author :
Shang-Te Yang ; Hao Ling
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
A frequency-scanned microstrip leaky wave antenna (MLWA) is combined with a short-pulse radar to achieve real-time range-azimuth imaging of a scene. The antenna is designed to have a narrow scanning beam across the bandwidth of the radar. The direction-finding capability is verified through measurement and full-wave simulation. An imaging algorithm based on the short-time Fourier transform is developed. Line-of-sight and through-wall images of a moving human are presented to demonstrate the performance of the system.
Keywords :
Fourier transforms; image motion analysis; leaky wave antennas; microstrip antennas; radar imaging; radio direction-finding; 2D imaging; MLWA; direction-finding capability; frequency-scanned microstrip leaky wave antenna; full-wave simulation; line-of-sight; moving human; narrow scanning beam; real-time range-azimuth imaging algorithm; short-pulse radar; short-time Fourier transform; through-wall images; Frequency measurement; Imaging; Microstrip antennas; Radar antennas; Radar imaging;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904400
