Compressed power spectrum, carrier and DOA estimation via PARAFAC decomposition

Abstract

This paper considers the problem of joint wideband spectrum sensing and direction-of-arrival (DoA) estimation in a sub-Nyquist sampling framework. A new phased-array based sub-Nyquist receiver architecture, which requires only a single delay channel for each sensor output and thus can be implemented simply and efficiently, is proposed. We proposed a CANDECOMP/PARAFAC (CP) decomposition-based method for joint wideband spectrum sensing and DOA estimation through exploiting the cross-correlations between different sensor outputs. Simulation results under different numbers of antennas and signal to noise ratios (SNR) are provided to corroborate our proposed algorithm.