Narrowband recursive filters with error spectrum shaping
- 24 March 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Errors due to finite wordlength can in general be quite large in narrowband recursive digital filters. It has been shown that the mean squared roundoff error may be considerably reduced by using a technique known as error spectrum shaping (ESS), which utilizes quantizer feedback. In this paper it is shown that ESS can also significantly reduce the amplitude of zero input limit cycle oscillations. A more complete analysis of the MSE is then presented, which is useful for design purposes.Keywords
This publication has 8 references indexed in Scilit:
- Error spectrum shaping in narrow-band recursive filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1977
- A Recursive Digital Filter Using DPCMIEEE Transactions on Communications, 1976
- New recursive digital filter structures having very low sensitivity and roundoff noiseIEEE Transactions on Circuits and Systems, 1975
- A new hardware realization of digital filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1974
- Digital DPCM Codec for TV Signals Based onDeltaM/DPCMDigital ConversionsIEEE Transactions on Communications, 1974
- Improvement of overflow behaviour of 2nd-order digital filters by means of error feedbackElectronics Letters, 1974
- An absolute bound on limit cycles due to roundoff errors in digital filtersIEEE Transactions on Audio and Electroacoustics, 1973
- Reduction of Quantizing Noise by Use of FeedbackIEEE Transactions on Communications, 1962