Joint DOA and Multi-Pitch Estimation Using Block Sparsity

摘要: In this paper, we propose a novel method to estimate the fundamental frequencies and directions-of-arrival (DOA) of multi-pitch signals impinging on sensor array. Formulating estimation as group sparse convex optimization problem, use alternating direction multipliers (ADMM) both temporal spatial correlation array signal. By first jointly estimating time-of-arrivals (TOAs) for each sound source, then form non-linear least squares obtain DOAs. Numerical simulations indicate preferable performance proposed estimator compared current state-of-the-art methods.