Incident wave estimation method and incident wavenumber estimation apparatus

摘要

PPROBLEM TO BE SOLVED: To provide an incident wave number estimating device capable of estimating the number of incident waves, based on the magnitude of each column vector of a mixed matrix estimated value. PSOLUTION: The device includes an independent component analysis processing part 41 to output the mixed matrix estimated value from received signals obtained by the interference of mutually independent incident waves, and a column vector magnitude computing part 42 for computing the magnitude of each column vector of the mixed matrix estimated value based on the norm of each column vector of the mixed matrix estimated value and the number of received signals. The device estimates the number of incident waves using the magnitude of the column vector of the mixed matrix estimated value. PCOPYRIGHT: (C)2010,JPO&INPIT