@InProceedings{6952350,
  author = {T. Kronvall and S. I. Adalbjörnsson and A. Jakobsson},
  booktitle = {2014 22nd European Signal Processing Conference (EUSIPCO)},
  title = {Joint DOA and multi-pitch estimation via block sparse dictionary learning},
  year = {2014},
  pages = {1053-1057},
  abstract = {In this paper, we introduce a novel sparse method for joint estimation of the direction of arrivals (DOAs) and pitches of a set of multi-pitch signals impinging on a sensor array. Extending on earlier approaches, we formulate a novel dictionary learning framework from which an estimate is formed without making assumptions on the model orders. The proposed method alternatively uses a block sparse approach to estimate the pitches, using an alternating direction method of multipliers framework, and alternatively a nonlinear least squares approach to estimate the DOAs. The preferable performance of the proposed algorithm, as compared to earlier methods, is shown using numerical examples.},
  keywords = {array signal processing;direction-of-arrival estimation;least squares approximations;joint DOA-multipitch estimation;block sparse dictionary learning;direction-of-arrival estimation;multipitch signals;sensor array;dictionary learning framework;model orders;block sparse approach;pitch estimation;alternating direction method;nonlinear least square approach;Dictionaries;Estimation;Direction-of-arrival estimation;Joints;Arrays;Harmonic analysis;Acoustics;multi-pitch estimation;group sparsity;block sparsity;dictionary learning;ADMM;direction-of-arrival},
  issn = {2076-1465},
  month = {Sep.},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2014/html/papers/1569925091.pdf},
}

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