Comments on “Enhanced PUMA for Direction-of-Arrival Estimation and Its Performance Analysis”
Dave Zachariah, Petre Stoica, Magnus Jansson · IEEE Transactions on Signal Processing · 2017
We show that the recently proposed (enhanced) principal-singular-vector utilization for modal analysis (PUMA) estimator for array processing [C. Qian, L. Huang, N. Sidiropoulos, and H. C. So, “Enhanced PUMA for direction-of-arrival estimation and its performance analysis,”IEEE Trans. Signal Process., vol. 64, no. 16, pp. 4127–4137, Aug. 2016], minimizes the same criterion function as the well-established method of direction estimation (MODE) estimator.