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Design and Performance Analysis of Zoom-FFT Based FMCW Radar Level Meter  

Sanjeewa, Nuwan (공주대학교 전기전자제어공학부)
Kim, Won-Ho (공주대학교 전기전자제어공학부)
Publication Information
Journal of Satellite, Information and Communications / v.9, no.2, 2014 , pp. 38-44 More about this Journal
Abstract
This paper presents design of a FMCW (Frequency Modulated Continuous Wave) level meter as well as simulation result of the designed system. The system is designed to measure maximum range of 20m since FMCW radar can be used for measuring short range distance. The distance is measured by analyzing the beat signal which is generated as result of mixing transmitting signal with the reflected received signal. The Fast Fourier Transform is applied to analyze the beat signal for calculating the displacement and Zoom FFT technique is used to minimize measurement error as well as increase the resolution of the measurement. The resolution of the measurement of the designed system in this paper is 2.2mm and bandwidth of 1.024GHz is used for simulation. Thus the simulation results are analyzed and compared in various conditions in order to get a comprehensive idea of frequency resolution and displacement resolution.
Keywords
FMCW Radar; Radar level meter; Fast Four Transform; Zoom-FFT;
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1 Guilin Zheng, Hongyan Zong,Xiangtao Zhuan, Lijuan Wang,"High-Accuracy Surface-Perceiving Water Level Gauge With Self-Calibration for Hydrography", Sensors Journal of EEE , Vol. 10, pp. 1893-1900, 2010   DOI   ScienceOn
2 Weiss, Knochel, Reinhard, "A sub-millimeter accurate microwave multilevel gauging system for liquids in tanks", IEEE Transactions on Microwave Theory and Techniques, Vol. 49, pp 381-384, 2001   DOI   ScienceOn
3 Gulden, Vossiek, Stelzer, "Application of state-space frequency estimation to a 24-GHz FMCW tank level gauging system", Conference on Microwave, Vol. 3, pp. 995-998, 2003
4 Eugin Hyun, Sang-Dong Kim, Yeong-Hwan Ju, Jong-Hun Lee, "FPGA based signal processing module design and implementation for FMCW vehicle radar systems", IEEE CIE International Conference on Radar, Vol. 1, pp 273-275, 2011
5 Armbrecht, Zietz, Denicke, Rolfes, "Antenna Impact on the Gauging Accuracy of Industrial Radar Level Measurements", IEEE Transactions on Microwave Theory and Techniques, vol. 59, pp 2554-2562, 2011   DOI   ScienceOn
6 Hyun, Jonghun Lee, "Moving target range detection algorithm for FMCW radar" 14th International Radar Symposium (IRS), Vol. 2, pp. 758-761, 2013
7 Hai Chen, Yan Li, Xin-Min Wang, "Digital Signal Processing for A Level Measurement System Based on FMCW Radar", IEEE International Conference on Control and Automation, pp 2843-2847, 2007
8 Suk-Jun Ji, Woo-Jin Choi, Kyung-Yup Kim, Lee, "A study on the precise distance measurement for radar level transmitter of FMCW type using correlation analysis method", 13th International Symposium on Advanced Intelligent Systems (ISIS), pp 2009-2014, 2012
9 Weiss, " Low-cost, low-power nanosecond pulse radar for industrial applications with mm accuracy", International Symposium on Electron Devices for Microwave and Optoelectronic Applications, pp. 199-204, 2001.
10 Stuchly, Hamid, Andres, "Microwave Surface Level Monitor", IEEE Transactions on Industrial Electronics and Control Instrumentation, vol. 18, pp. 85-92, 2006