ShiftNMF<i>k</i> results for identification of the locations and speed of unknown number of sources <i>inside</i> the sensor array.

<p>Panel A: The average silhouette width (blue) and the average reconstruction error (red) for a different number of sources. Panel B: Color coded visualization of the mixing matrices (true and estimated) where each column represents how well each source is represented at each sensor. Panel C: The true (green line) and the estimated (blue dots) signal transients superimposed over each other. Panel D: The signal delays at each sensor represented as a bar graph with true (blue bars) and estimated delays (red bars). The correct number of sources is identified (3). The estimates for the signal transients, the signal delays and the signal mixing are very close to their true values.