Abstract: A method for direction finding is described wherein incoming signals are scanned and analyzed. The bearing value and its quality of the incoming signals are determined by using a direction finding method. A covariance matrix is generated from the incoming signals by using a multiple-wave detector unit. The dimension of the covariance matrix is reduced in order to obtain a reduced covariance matrix. The eigenvalues of the reduced covariance matrix are determined. Then, it is determined whether more than one signal, a single signal or no signal is detected by using the eigenvalues and the quality determined by using the direction finding method. Further, a direction finder is described.

Abstract: A method for direction finding is described wherein incoming signals are scanned and analyzed. The bearing value and its quality of the incoming signals are determined by using a direction finding method. A covariance matrix is generated from the incoming signals by using a multiple-wave detector unit. The dimension of the covariance matrix is reduced in order to obtain a reduced covariance matrix. The eigenvalues of the reduced covariance matrix are determined. Then, it is determined whether more than one signal, a single signal or no signal is detected by using the eigenvalues and the quality determined by using the direction finding method. Further, a direction finder is described.