Two-Stage-Based Polyphase Structures for Arbitrary-Integer Sampling Rate Conversion
Circuits and Systems II: Express Briefs, IEEE Transactions (2015)
摘要
This brief derives efficient two-stage-based polyphase structures for arbitrary-integer sampling rate conversion. For even-integer conversions, the overall structures correspond to parallelized conventional two-stage structures, but the derivations in this brief offer further insights when comparing the two cases of odd- and even-integer conversions. For the class of linear-phase finite-length impulse response th-band filters, it is then demonstrated through design examples that conversions by odd factors are in fact more efficient than by even factors.
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关键词
$m$th-band filters,decimation,mth-band filters,nyquist filters,interpolation,multi-stage structures,multistage structures,polyphase structures,sampling rate conversion,noise measurement,passband,transient response
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