Digit Recognition in Air-Writing Using Single Millimeter-Wave Band Radar System

• Published in: IEEE sensors journal Vol. 22; no. 10; pp. 9387 - 9396
• Main Authors: Lee, Hyeonmin, Lee, Yonghee, Choi, Hanho, Lee, Seongwook
• Format: Journal Article
• Language: English
• Published: New York IEEE 15.05.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Air-writing; Artificial neural networks; Chirp; Continuous radiation; convolutional neural network; Data acquisition; digit recognition; Doppler radar; frequency-modulated continuous wave radar; Horizontal orientation; Hough transform; Hough transformation; Millimeter waves; Radar; Radar antennas; Radar detection; Radar equipment; Radar systems; Receiving antennas; Recognition; Sensors

In this paper, we propose an air-writing method in a millimeter-wave band radar system. In particular, a method for removing undesired detection results due to a hand movement is proposed. In our experiments, we use a frequency-modulated continuous wave (FMCW) radar system using 62 GHz as the center...