Proposes cascaded adaptive notch filters to enable multi-signal DoA estimation with two antennas, approaching oracle performance for separable signals in simulations and hardware test.
DOA estimation of quasi- stationary signals with less sensors than sources and unknown spatial noise covariance: A Khatri–Rao subspace approach,
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A Lightweight Method for Multiple Signal Direction Estimation with Adaptive Notch Filters
Proposes cascaded adaptive notch filters to enable multi-signal DoA estimation with two antennas, approaching oracle performance for separable signals in simulations and hardware test.