Title :
A novel method for beat frequency error correction for a low cost FMCW radar using VCO sweep characteristics
Author :
Park, Jung Dong ; Kim, Wan Joo ; Lee, Chang Won
Author_Institution :
Agency for Defense Dev., Daejeon
Abstract :
In this paper, we present a simple nonlinearity correction method for a linear frequency modulated continues wave (FMCW) radar. When a typical varactor-tuned voltage controlled oscillator (VCO) is used as the source, we find that the range resolution could be dramatically improved by proper time gating of the beat signals with nonlinearity compensation circuitry. We propose how to optimize the time gating interval and position for an implemented W-band transceiver and verify the improvement of target selectivity of an FMCW radar sensor
Keywords :
CW radar; FM radar; transceivers; varactors; voltage-controlled oscillators; VCO sweep characteristics; W-band transceiver; beat frequency error correction; frequency modulated continues wave radar; linear radar; low cost FMCW radar; nonlinearity correction method; varactor-tuned voltage controlled oscillator; Bandwidth; Chirp modulation; Costs; Error correction; Frequency; Radar applications; Radar measurements; Signal resolution; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Radar Conference, 2005. EURAD 2005. European
Conference_Location :
Paris
Print_ISBN :
2-9600551-3-6
DOI :
10.1109/EURAD.2005.1605641
