MUSIC algorithm

The MUSIC algorithm ( multiple signal classification ) is an estimation algorithm for digital signal processing . It makes it possible to determine the frequency and the direction of reception from a mixture of several noisy signals. The procedure was first published in 1979 by Ralph Otto Schmidt (* 1938) and later expanded by him into his dissertation .

The MUSIC algorithm is one of the most common algorithms used today to determine the angle of an incoming signal. This means that MUSIC and its variants are used in determining the position of e.g. B. WLAN devices such as smartphones or notebooks. The receiving antennas must be arranged in a uniform linear array or at least on a uniform grid for the possibility of using MUSIC.

Individual evidence

1. ↑ Multiple emitter location and signal parameter estimation. Proceedings of the RADC Spectrum Estimation Workshop, Griffiss Air Force Base 1979, pp. 243-258. Reprinted in: IEEE Transactions on Antennas and Propagation, 1986 (34), 3, pp. 276-280.
2. ↑ A signal subspace approach to multiple emitter location and spectral estimation. Ph. D. dissertation, Stanford University, Stanford 1981.
3. ↑ Xiang Li, Shengjie Li, Daqing Zhang, Jie Xiong, Yasha Wang and Hon Mei: Dynamic-Music: Accurate Device-Free Indoor Localization . In: Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing . ACM, 2016, p. 196-207 .