Title :
Comparison of spread spectrum radar and impulse radar for through-wall imaging based on FDTD
Author :
Xuehui Zhang ; Xiaoli Xi ; Minchao Li ; Daocheng Wu
Author_Institution :
Key Lab. of Biomed. Inf. Eng., Xi´an Jiaotong Univ., Shaan Xi, China
fDate :
March 30 2015-April 1 2015
Abstract :
A spread spectrum (SS) radar is compared with a conventional impulse radar for through wall imaging in this paper. In order to simulate the real electromagnetic environment, all the echoes are generated via modeling and simulation of the finite-different time-domain (FDTD) method. Results show that the SS radar has a great advantage over the impulse radar in some ways, such as targets recognition, engineering realization and immunity from interference. The targets can still be recognized accurately in the image, even when the receiving signals of SS radar are added with -0.83dB noise and sampled by a 2bit, 1 Gs/s analog-to-digital converter(ADC).
Keywords :
analogue-digital conversion; finite difference time-domain analysis; radar imaging; radar interference; spread spectrum radar; FDTD method; analog-to-digital converter; electromagnetic environment; engineering realization; finite-different time-domain method; impulse radar; interference immunity; spread spectrum radar; targets recognition; through-wall imaging; Finite difference methods; Image recognition; Imaging; Noise; Radar imaging; Time-domain analysis; FDTD; Impulse radar; spread spectrum radar; through wall imaging;
Conference_Titel :
Wireless Symposium (IWS), 2015 IEEE International
Conference_Location :
Shenzhen
DOI :
10.1109/IEEE-IWS.2015.7164611
