Radar-Based Estimation of Human Body Orientation Using Respiratory Features and Hierarchical Regression Model

• Published in: IEEE sensors letters Vol. 7; no. 9; pp. 1 - 4
• Main Authors: Sun, Wenxu, Iwata, Shunsuke, Tanaka, Yuji, Sakamoto, Takuya
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.09.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Accuracy; Body orientation; Estimation; Harmonic analysis; Higher harmonics; Human body; Millimeter waves; millimeter-wave radar; Orientation; Radar; Radar antennas; Radar echoes; Radar equipment; Radar imaging; Radar measurements; regression model; Regression models; Resonant frequencies; respiratory harmonics; Sensors

This study proposes an accurate method to estimate human body orientation using a millimeter-wave radar system. Body displacement is measured from the phase of the radar echo, which is analyzed to obtain features associated with the fundamental and higher-order harmonic components of the quasi-perio...