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There is an abundance of motion information in micro-Doppler spectrum of walking human such as bulk velocity, gait cycle and cycle length. Furthermore, the physical parameters of walking human can be estimated using motion parameters. Motion parameter and physical parameter are both important for precise radar recognition of walking human. However, parameter estimation is very difficult because of...
Radar micro-Doppler (mD) provides a promising approach to parameter estimation and classification of micro-dynamic targets. The micro-motion states and characteristics of instantaneous mD frequency are investigated to free symmetric rigid bodies. They are found to take the precession motion, and thus induce complicated mD features with non-sinusoidal variation. Based on theoretical analysis of the...
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