Abstract: [Object] To provide a characteristic-value calculating device, a characteristic-value calculating method, and a recording medium that can extract a characteristic value for more accurately recognizing the state of a moving object, such as a human, from a Doppler signal. [Solution] A characteristic-value calculating device includes an acquiring unit that acquires a Doppler signal, an extracting unit that extracts a time-series signal constituted of a predetermined frequency component from the Doppler signal acquired by the acquiring unit, a selecting unit that selects a signal value at a predetermined interval from the time-series signal extracted by the extracting unit, and a calculating unit that calculates higher-order local autocorrelation based on the signal value selected by the selecting unit.

Abstract: The present invention relates to a motion analysis system that includes a sensor device for measuring a motion amount related to an object which repeats a certain motion and a motion analysis device for analyzing the certain motion of the object based on the measured result by the sensor device. The motion analysis device includes means for storing time series data of the motion amount measured by the sensor device; means for analyzing a spectral intensity in each frequency in time series of waveforms shown by the time series data by using a certain function and analyzing by applying different parameters for each frequency to the function; and means for comparing spectral intensity analysis result in each frequency with different frequencies and analyzing a certain physical amount related to the certain motion of the object based on the comparison result.