RSI Algorithm for Direction of Arrival Estimation with Uncertainties of Sensor Gain
DU Hui-ping · 2001
Recent studies have shown that perfomance of DOA estimation via ESPRIT or other algorithms degrades drastically with a bad knowledge on array manifold. In this paper, a new approach based on subspace rotational invariance (SRI) for DOA estimation with unknown intensity coefficients is proposed. The ambiguous estimation appears in certain cases and must be eliminated. Detailed analysis of ambiguous problem is presented and is illuminated by numerical examples.