A novel technique for the design of QMF filter banks with approximately linear phase, based on allpass filters
نویسندگان
چکیده
The two -channel QMF filter bank based on all pass sections is one of the best known circuits for building up a multi -channel filter bank for signal compression. An analysis -synthesis combination can satisfy two of the three PR conditions. The third, phase condition, can be met to any desired accuracy . In this contribution, we consider the development of explicit formulae for the coefficients of such filters.
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