Patent ID: 8520641
Filing Date: 2013-08-27
Classification: G01S,H04B,H04L

Abstract:
1. An arrival time and direction estimating device comprising: an array antenna composed of multiple antenna elements; multiple correlation operation units that perform mutual correlation operation between signals received by the respective antenna elements of said array antenna and a predetermined signal so as to calculate first correlation operation values; a path detection unit that detects multiple arrival path receiving timings based on the multiple first correlation operation values; a path correlation value synthesis unit that calculates complex conjugates of the multiple first correlation operation values at said detected arrival path receiving timings and generates a correlation matrix or a correlation vector using the multiple first correlation operation values and the multiple complex conjugates; and an arrival direction estimation unit that performs arrival direction estimation based on an element space of the array antenna and a phase difference determined by a arrival direction using the correlation matrix or the correlation vector.