This collection of predesigned linear phase digital filters has been prepared to serve the category of users whose research or development applications require some form of digital filtering, but who do not have the time to explore the very wide range of digital filter design techniques available. Often, the research or development requirement is to demonstrate a fundamental operational principle where basic filtering is needed as part of a more complex operation. Moreover, in some large research and development departments the design process for key filtering tasks can be duplicated several times over, leading to loss of valuable time and a substantial cost to the delivery of the product. The product here is not limited to engineering prototypes, but extends to high value data in finance, meteorology, economics, and imaging. The aim of this working handbook therefore is to provide a collection of digital filters whose characteristics can be quickly determined, compared, and applied immediately, avoiding the sometimes intricate design process.
This is a rather ambitious aim given the many excellent filter design software, textbooks, and research literature dedicated to digital signal processing. And furthermore, by the very nature of its coverage, a short collection of digital filters cannot possibly satisfy the wide filtering requirements found in practice. However, in a busy R&D department where time to market is challenging and aggressive, and where quick product demonstration is a priority, predesigned filters are believed to present a practical solution. In principle, the book is designed to match a...
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