METHOD AND APPARATUS FOR RECURSIVE DATA FILTERING
An apparatus and method for recursive filtering of time discrete measurement data b ni(50) relating to a measurable time-varying attribute to generate an estimated magnitude for the attribute at a particular time instant n. Each measurement has an associated reliability indicator X ni(52) representi...
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| creator | ERIKSSON, STEFAN FURUSKAR, ANDERS JAVERBRING, STEFAN |
| description | An apparatus and method for recursive filtering of time discrete measurement data b ni(50) relating to a measurable time-varying attribute to generate an estimated magnitude for the attribute at a particular time instant n. Each measurement has an associated reliability indicator X ni(52) representing a relative reliability of the measurement. Using the individual reliability indica-tors and a time-weighted filtered reliability indicator Z n-1 for a prior time instant, a filtered reliability indicator Z n(58) for the current time instant is generated. The filtered reliability indicator for the current time instant is then used to reliability-weight a weighted average (b n) of the plurality of measurements and to reliability-weight a time-weighted estimated magnitude s n-1 for the prior time instant. The weighted values are then used to generate an estimated magnitude s n (68) of the time-varying attribute for the current time instant. |
| format | Patent |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING |
| title | METHOD AND APPARATUS FOR RECURSIVE DATA FILTERING |
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