Title :
A FTDC technique to improve the range resolution of short range FMCW radar
Author :
Yongqi, Jing ; Guoyu, He ; Yongbin, Xu ; Hui, Fang
Author_Institution :
Dept. of Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
VCO non-linearity limits its application, and deteriorates the range resolution, in short-range frequency modulated continuous wave (FMCW) radar. This paper presents a fast time-domain calibration linearization technique (FTDC), based in software, by using a known length. It is confirmed by a simulated experiment in a microwave non-reflective chamber. The result shows the range resolution is improved greatly and its side-lobes are reduced by about 10 dB effectively.
Keywords :
CW radar; FM radar; anechoic chambers (electromagnetic); antenna radiation patterns; calibration; linearisation techniques; radar computing; radar resolution; time-domain analysis; voltage-controlled oscillators; FMCW radar; VCO nonlinearity limitations; fast time-domain calibration linearization techniques; known length software based FTDC techniques; microwave nonreflective chambers; range resolution deterioration; short range FMCW radar range resolution improvement; side-lobe reduction; Application software; Bandwidth; Calibration; Frequency modulation; Helium; Radar applications; Signal resolution; Time domain analysis; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187741
