Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Polyphase analysis of subband adaptive filters

Weiss, Stephan and Stewart, Robert and Harteneck, Moritz and Stenger, Alexander (1999) Polyphase analysis of subband adaptive filters. In: 33rd Asilomar Conference on Signals, Systems, and Computers, 1999-10-24 - 1999-10-27, Pacific Grove, CA.

weiss99e.pdf - Final Published Version

Download (409kB) | Preview


Based on a polyphase analysis of a subband adaptive filter (SAF) system, it is possible to calculate the optimum subband impulse responses to which the SAF system will converge. We give some insight into how these optimum impulse responses are calculated, and discuss two applications of our technique. Firstly, the performance limitations of an SAF system can be explored with respect to the minimum mean square error performance. Secondly, fullband impulse responses can be correctly projected into the subband domain, which is required for example for translating constraints for subband adaptive beamforming. Examples for both applications are presented.