Guest Editorial Special Issue On Multirate Systems, Filter Banks, Wavelets, And Applications
The last decade has seen a tremendous amount of 
activity and emergence of applications in the areas of 
filter banks and wavelets. These topics are of such wide 
interest that there have been papers in many different journals, conferences, and workshops in diverse disciplines. However, many aspects of the theory, design, and application of filter banks and wavelets are of great interest to the circuits and systems community as well. Our editorial team felt that this was a perfect time to put together a special issue with state-of-the-art papers on these popular topics. All of the papers have been peer-reviewed according to the usual practice of 
this TRANSACTIONS. Almost in parallel, there is also a similar 
special issue (April 1998) by the IEEE TRANSACTIONS ON SIGNAL 
PROCESSING, with a slightly greater emphasis on applications. 
Many well-known authors have contributed articles to these 
special issues and we expect these to serve as valuable 
references for a long time to come.