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Fixed-point optimization utility for C and C++ based digital signal processing programs

DC Field Value Language
dc.contributor.authorKim, Seehyun-
dc.contributor.authorKum, Ki-Il-
dc.contributor.authorSung, Wonyong-
dc.date.accessioned2009-08-05T06:47:33Z-
dc.date.available2009-08-05T06:47:33Z-
dc.date.issued1998-11-
dc.identifier.citationIEEE Trans. Circuits and Systems II: Analog and Digital Signal Processing, vol. 45, no. 11, pp. 1455-1464, Nov. 1998en
dc.identifier.issn1057-7130-
dc.identifier.urihttps://hdl.handle.net/10371/6183-
dc.description.abstractFixed-point optimization utility software is developed
that can aid scaling and wordlength determination of
digital signal processing algorithms written in C or C++. This
utility consists of two programs: the range estimator and the
fixed-point simulator. The former estimates the ranges of floatingpoint
variables for purposes of automatic scaling, and the latter
translates floating-point programs into fixed-point equivalents to
evaluate the fixed-point performance by simulation. By exploiting
the operator overloading characteristics of C++, the range estimation
and the fixed-point simulation can be conducted by simply
modifying the variable declaration of the original program. This
utility is easily applicable to nearly all types of digital signal processing
programs including nonlinear, time-varying, multirate,
and multidimensional signal processing algorithms. In addition,
this software can be used to compare the fixed-point characteristics
of different implementation architectures. An optimization
example for an 8 8 inverse discrete cosine transform (IDCT)
architecture that conforms to the IEEE standard specifications is presented. The optimized results require 8% fewer gates when compared with the previous best implementation.
en
dc.language.isoen-
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectFinite wordlength effectsen
dc.subjectfixed-point optimizationen
dc.subjectfixed-point simulationen
dc.subjectrange estimationen
dc.titleFixed-point optimization utility for C and C++ based digital signal processing programsen
dc.typeArticleen
dc.contributor.AlternativeAuthor김시현-
dc.contributor.AlternativeAuthor금기일-
dc.contributor.AlternativeAuthor성원용-
dc.identifier.doi10.1109/82.735357-
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