Title :
A DDS and PLL-based X-band FMCW radar system
Author :
Yun-Taek Im ; Jee-Hoon Lee ; Seong-Ook Park
Author_Institution :
Dept. of Inf. & Commun. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
A DDS and PLL-based FMCW range meter system is described. The DDS is used as a reference clock of a linearly frequency modulated signal source, and the PLL is controlled by it. The bandwidth and the sweep time of the FMCW radar system are 150 MHz, and 270 us. Zero-padding and spectral centroid processing techniques are used to measure a target range, and the range resolution is less than 0.25 m.
Keywords :
CW radar; FM radar; direct digital synthesis; phase locked loops; radar signal processing; signal resolution; DDS-based X-band FMCW radar system; PLL-based X-band FMCW radar system; frequency 150 MHz; linearly frequency modulated signal source; range resolution; reference clock; spectral centroid processing technique; target range measurement; time 270 mus; zero-padding processing technique; Chirp modulation; Clocks; Digital signal processing; Frequency modulation; Phase locked loops; Radar; Voltage-controlled oscillators; DDS; FMCW; PLL; radar;
Conference_Titel :
Intelligent Radio for Future Personal Terminals (IMWS-IRFPT), 2011 IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4577-0961-6
Electronic_ISBN :
978-1-4577-0963-0
DOI :
10.1109/IMWS2.2011.6027213
