A novel method for beat frequency error correction for 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, South Korea

Volume

3

fYear

2005

fDate

4-6 Oct. 2005

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; error compensation; error correction; transceivers; voltage-controlled oscillators; FMCW radar; VCO sweep characteristics; W-band transceiver; beat frequency; beat signals; error correction; frequency modulated continues wave radar; nonlinearity compensation circuitry; nonlinearity correction; range resolution; target selectivity; time gating; Bandwidth; Chirp modulation; Costs; Error correction; Frequency; Radar applications; Radar measurements; Signal resolution; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2005 European

Print_ISBN

2-9600551-2-8

Type

conf

DOI

10.1109/EUMC.2005.1610384

Filename

1610384