Title :
The real-time extraction technique of swept frequency nonlinearity of MM-wave LFMCW radar
Author :
Chen Weidong ; Xu Shanjia ; Wang Dongjin ; Liu Falin
Author_Institution :
Dept. of EE & IS, Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
The high range resolution of MM-wave linear frequency-modulation continuous wave (LFMCW) radar is greatly limited by nonlinearity in frequency sweep. This paper presents a real-time nonlinearity extracting technique based on zero-crossing detection, and the analysis of its estimation performance. Finally, the analysis results on swept frequency nonlinearity and range resolution of a practical MM-wave LFMCW radar are also provided.
Keywords :
CW radar; FM radar; radar detection; radar resolution; EHF; MM-wave linear FMCW radar; continuous-wave radar; estimation performance analysis; frequency sweep; frequency-modulation radar; high range resolution; real-time extraction technique; real-time nonlinearity extracting technique; swept frequency nonlinearity; zero-crossing detection; Delay effects; Frequency measurement; Jitter; Linearity; Noise generators; Performance analysis; Radar clutter; Radar detection; Signal to noise ratio; Testing;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.893084
