General programmable digital filter and its working method

A technology of digital filter and working method, applied in the direction of digital technology network, impedance network, electrical components, etc., can solve the problems of complex board-level design and verification, increase system design cost, lack of versatility, etc., and improve real-time response , Reduce the use of analog components and improve the accuracy
CN1866738AInactive Publication Date: 2006-11-22WUHU SANMU ELECTRONICS SCI & TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHU SANMU ELECTRONICS SCI & TECH
Publication Date
2006-11-22
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a general purpose programmable digit filter and working method, which is characterized by the following: the invention is composed of 9 functional modulars; the working method consists of two working methods: allocation method and filtering duty; the invention improves the stability, anti-interference ability and accuracy and avoids internal noise of electric filter system effecting the filtering signal; the invention uses many hardware multiplicators and accumulators to realize filtering calculation, which improves the response real-time ability.
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Description

technical field

[0001] The invention relates to a filter and its working method, in particular to a general programmable digital filter device and its working method. Background technique

[0002] A filter is an electronic device that can pass useful signals smoothly while suppressing (or attenuating) unwanted frequency signals. It is commonly used in engineering for signal processing, data transmission and interference suppression. In measurement and communication systems, a filter is essentially an electronic device that can extract the information carried by the original signal from a signal that has been distorted and polluted by noise.

[0003] Filters can be divided into analog filters and digital filters.

[0004] An analog filter can be defined as an electronic device that is mainly composed of analog components and performs analog calculations on analog signals to complete signal filtering and processing functions.

[0005] In contrast, a digital filter can be de...

Claims

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