Architecture and performance characterization of hardware and software implementations of the Crozier frequency estimation algorithm

Lafrance, L.-P.; Cantin, M.-A.; Savaria, Yvon; Sung, Star; Lavoie, P.

doi:10.1109/iscas.2002.1010584

Cited by 5 publications

(1 citation statement)

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“…For the filters, the word lengths of both coefficients and data-paths were analyzed. The hardware architecture and operands for the fifth order elliptic filter were taken from [12], the IDCT from [27], the frequency estimation algorithm from [28] and the neural network algorithm from [29].…”

Section: Comparisonmentioning

confidence: 99%

An automatic word length determination method

Cantin

Savaria

Prodanos

et al.

ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196)

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-Automatic word length determination of hardware data paths may require considering several error models, user specifications and hardware costs. A new automatic method for determining the word length of hardware data paths that consider these requirements is proposed and analyzed. The search-based method uses a C/C++ fixed-point simulation tool to model the impact of finite word lengths on overall accuracy. By computing dissimilarities between fixed-point and floating-point simulation results, a procedure searches for a combination of word lengths that meets accuracy criteria specified by the designer. This method is presented with four novel maximization procedures. These four automatic procedures are compared with other procedures given in the literature and adapted into the method. The comparison helps to select a procedure that finds a combination of word lengths that meet user specifications, in a small number of iterations. The procedures are characterized and compared using a dozen DSP algorithms.

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Section: Comparisonmentioning

confidence: 99%