Comments on “Localization of Near-Field Sources Based on Linear Prediction and Oblique Projection Operator”

In the aforementioned paper the authors investigate the localization of multiple near-field narrowband sources with a symmetric uniform linear array, and develop a new linear prediction approach based on the truncated singular value decomposition. In this comment we point out several shortcomings of the model they use for the data measured by the array. The mismatch between this highly idealized mathematical model and the true array response raises concerns about the performance of the proposed method on real arrays.