ESTIMATING DEVICE, ESTIMATING SYSTEM, ESTIMATING METHOD, AND RECORDING MEDIUM

Abstract

An estimating device: generates a multicarrier signal; causes a transmission antenna including M transmission antenna elements to transmit the multicarrier signal; measures, for a first period equivalent to a cycle derived from an activity of a moving body, a reception signal which is received by N reception antenna elements included in L reception antennas and includes a reflected signal of the multicarrier signal transmitted from the M transmission antenna elements and reflected or scattered by the moving object; calculates, for each of subcarriers, complex transfer functions each indicating a propagation characteristic between the M transmission antenna elements and the N reception antenna elements, using the reception signal measured in the first period; calculates a correlation matrix based on the complex transfer functions; calculates subcarrier phase offsets from an imaginary component of the moving object information; and estimates a direction from the estimating device to the moving object.

CPC Classifications