A Short Range FMCW Radar System with Low Computational Complexity
Hyeokjin Lim and Seongjoo Lee
Department of Electrical Engineering, Sejong University, Seoul, Korea
Abstract—In this paper, a short range FMCW (Frequency Modulated Continuous Wave) radar system with low computation complexity is proposed. In order to improve the frequency linearity, the proposed FMCW radar system adopts the digital frequency modulation with the counter and look-up tables for sine and cosine waves in an FPGA (Field Programmable Gate Array). In order to reduce the complexity of hardware, it utilizes the arc cosine rom in time domain for calculating the distance instead of FFT. The total RMSE of the distance is less than one meter. The suggested FMCW radar is applicable to unmanned vehicle, train, ship, exploration robot, military tank and obstacle sensor.
Index Terms—radar, fast fourier transform, frequency modulated continuous wave
Cite: Hyeokjin Lim and Seongjoo Lee, "A Short Range FMCW Radar System with Low Computational Complexity," International Journal of Electronics and Electrical Engineering, Vol. 4, No. 4, pp. 370-373, August 2016. doi: 10.18178/ijeee.4.4.370-373
Cite: Hyeokjin Lim and Seongjoo Lee, "A Short Range FMCW Radar System with Low Computational Complexity," International Journal of Electronics and Electrical Engineering, Vol. 4, No. 4, pp. 370-373, August 2016. doi: 10.18178/ijeee.4.4.370-373
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