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Synthesis of very sharp Hilbert transformer using the frequency-response masking technique

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2 Author(s)
Lim, Y.C. ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Yu, Y.J.

Frequency translation of audio signals requires the use of very sharp Hilbert transformer if the low frequency components are to be faithfully translated. Unfortunately, the order of a very sharp Hilbert transformer is very high, resulting in very high arithmetic complexity. The frequency-response masking (FRM) technique has been used very successfully for greatly reducing the complexity of extremely sharp halfband filters. There is a very close relationship between a halfband filter and a Hilbert transformer. In this correspondence, we propose to synthesize a very sharp Hilbert transformer using the FRM technique via the synthesis of a very sharp halfband filter.

Published in:

Signal Processing, IEEE Transactions on  (Volume:53 ,  Issue: 7 )

Date of Publication:

July 2005

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