Circuit and method for handling wireless sensing

Abstract

A processing circuit includes: an estimating circuit, for generating a phase vector according to a phase signal, and for estimating the phase vector to generate an estimated phase matrix; a decomposing circuit, for decomposing the estimated phase matrix to generate an eigenvalue matrix and an eigenvector matrix; a first computing circuit, for performing a long-term average for a plurality of eigenvalues to generate a plurality of long-term eigenvalues; a second computing circuit, for computing a plurality of difference values for the plurality of long-term eigenvalues, and for determining an index corresponding to a difference value of the plurality of difference values; a spectrum generation circuit, for generating a pseudo spectrum according to the index, a plurality of eigenvectors and a steering vector; and a determining circuit, for determining at least one peak of the pseudo spectrum and at least one parameter corresponding to the at least one peak.