Title :
Performance and implementation of the inverse QR adaptive filter
Author :
Ghirnikar, Avinash L. ; Alexander, S.T.
Author_Institution :
ViTel Communications Corp., Santa Clara, CA, USA
Abstract :
The performance and implementation of the inverse QR algorithm for recursive least squares filtering are examined. This algorithm is based upon an inverse QR decomposition and therefore avoids the highly serial backsubstitution step required in previously derived direct QR approaches. A parallel implementation of the method is discussed and computational wavefronts are displayed. A brief comparison is made with an alternative array structure
Keywords :
adaptive filters; digital filters; least squares approximations; inverse QR adaptive filter; recursive least squares filtering; Adaptive filters; Computer displays; Concurrent computing; Filtering algorithms; High level languages; Least squares methods; Predictive models; Resonance light scattering; System identification; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226419
