Efficient synthesis and high-speed implementation of look-ahead recursive filters

Lan, Chien-Piao; Wen, Shih-Chieh; Jen, Chein-Wei

doi:10.1109/icassp.1992.226375

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…It is demonstrated that the proposed onestep approximation can achieve superior match with reduced pipelined filter order than would otherwise be needed with the existing two-step procedures. Since the DLA representation in (2) is most general and all the other LA expressions can be obtained as special cases of DLA, the method outlined next is for determining the coefficients of an -stage DLA filter in (2). Modifications for the other cases are straightforward.…”

Section: One-step Optimal Estimation Of La Coefficientsmentioning

confidence: 99%

“…For this second-order filter, the same number of denominator coefficients as the original can be maintained in a DLA implementation with in (2). This would lead to the following pipelined form: (4) where…”

Section: A Dla Based Pipelining Of Second-order Filter Blocksmentioning

confidence: 99%

“…According to the proposed DLA transformation, an -stage pipelined filter transfer function would have the general form in (2), shown at the bottom of the next page, where can, in general, be arbitrary integer values in increasing order with the maximum of the subscript being so that the total number of denominator coefficients remains same as in the original denominator in (1).…”

Section: Dla Pipeliningmentioning

confidence: 99%

See 2 more Smart Citations

Pipelined recursive digital filters: a general look-ahead scheme and optimal approximation

Shaw

Ahmed

1999

IEEE Trans. Circuits Syst. II

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A new look-ahead (LA) scheme, distributed lookahead (DLA), is proposed for pipelined implementation of recursive digital filters. It is established that, in the case of many recursive filters, DLA can provide equivalent and stable implementation with reduced multiplication and latch complexities, higher area-efficiency. It also produces outputs with reduced delays, when compared with some existing LA schemes. Stability regions for the proposed scheme are also well defined. Next, a time-domain approximation method is proposed for direct design of pipelined recursive filters that can achieve superior match with reduced pipelined filter orders.

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Section: One-step Optimal Estimation Of La Coefficientsmentioning

confidence: 99%

Section: A Dla Based Pipelining Of Second-order Filter Blocksmentioning

confidence: 99%