Application of Parallel Factor to Passive Coherent Location

For the huge computational burden of the matched filter utilized in Passive Coherent Location (PCL) system, this paper proposes a PARAllel FACtor (PARAFAC)-based locating method which estimates directly time delay and Doppler offset. To improve the poor estimation accuracy of frequency blind source separation in large delay spread, a new tensor receiver is built to process simultaneously beamforming, time delay and Doppler offset by exploiting the simultaneous diagonalization. The experiments show that the proposed method can gain high estimation accuracy.