A Fast Implementation of the ESPRIT
J.S. McGarrity, John J. Soraghan, T. S. Durruni · 1990
This paper dcscribcs a fast implcmcntation of thc rcccnlly dcvclopcd ESPRIT algorithm, incorporating parallcl processing. ESPRIT is a novcl, subspace fitting, paramctcr cstimation algorithm which is uscd for obtaining high resolution, unbiased cstimatcs of thc frcqucncics and powcrs of complex sinusoids in noisc. Thc algorithm involvcs complex dccompositions which rcquirc cxtcnsivc computation. In ordcr to use thc algorithm in closc to real-timc situations. it is altcrcd to facilitate fastcr compuution and thc usc of a parallcl architccturc. Thc altcrcd algorithm is dccomposcd onto an array of Inmos TWO transputcrs and iLs pcrformancc comparcd to that of thc standard TLS-Esprit through simulations.