Twisted Filter Banks
نویسنده
چکیده
The main idea of a filter bank is to transform an input signal by subjecting it to some convolution operations, possibly followed by sampling rate reductions. We extend this idea to filter banks that are based on more general twisted convolution operations, which are not necessarily time invariant. Roughly speaking, a twisted convolution is obtained from the well-known convolution operations by allowing certain additional scalar factors in the multiplication operations. We discuss basic properties of these filter banks. EDICS 1.TFSR
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