The design of digital filters is a deceptively complex topic. Certain parts of the design process can be automated, but normally an experienced electrical engineer is needed to get a good result. The filter design process can be described as an optimization problem where each requirement contributes to an error function that should be minimized. The purpose is to find a realization of the filter that meets each of the requirements to a sufficient degree to make it useful. ( December 2012) ( Learn how and when to remove this template message)įilter design is the process of designing a signal processing filter that satisfies a set of requirements, some of which may be conflicting. Please help to improve this article by introducing more precise citations. This article includes a list of general references, but it lacks sufficient corresponding inline citations.
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