Patent
Method and apparatus for controlling coefficients of adaptive filter
TLDR
In this article, a method or apparatus for controlling coefficients of an adaptive filter (3) for identifying unknown system or predicting periodic signals by correcting coefficients of the adaptive filter(3) in such a manner that the difference signal obtained by subtracting an output signal of the Adaptive Filter from a mixed signal of output signal from the unknown system and an interference signal comprises steps or means (9) for obtaining the information relating to the magnitude of the coefficients or output, and adaptively varying the amount of correction in coefficients of adaptive filter in response to the obtained information.Abstract:
A method or apparatus for controlling coefficients of an adaptive filter (3) for identifying unknown system or predicting periodic signals by correcting coefficients of the adaptive filter (3) in such a manner that the difference signal obtained by subtracting an output signal of the adaptive filter (3) from a mixed signal of the output signal from the unknown system and an interference signal comprises steps or means (9) for obtaining the information relating to the magnitude of the coefficients or output of the adaptive filter, and adaptively varying the amount of correction in coefficients of the adaptive filter in response to the obtained informationread more
Citations
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References
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Patent
Adaptive equalizer using precursor error signal for convergence control
TL;DR: In this paper, a decision feedback equalizer is enhanced by measuring the intersymbol interference precursor effect on each symbol decision output and utilizing that measurement information to update equalizer, transversal filter, tap multiplier coefficients in a direction to reduce the precursor and postcursor effects.
Patent
Mse variable step adaptive filter
TL;DR: In this article, a very rapidly converging adaptive filter which uses a variable scale factor for each weight of the filter was proposed, which is chosen for each iteration and is based upon the sign changes of the incremental weight change.
Patent
Adaptive filter using continuous cross-correlation
TL;DR: In this paper, the adaptive filter coefficients are updated in response to these correlations so as to minimize correlation of the resultant signal with the noise signal, which is achieved by superimposing on the filter input signal a known noise signal.
Patent
Apparatus and method for adaptively optimizing equalization delay of data communication equipment
TL;DR: In this article, an equalizer for data transmission equipment that minimizes the total duration of the equalization delay between the request to send (DPE) and when the equipment is "ready to send" (EAP) is described.
Patent
System and method for providing digital filter coefficients
TL;DR: In this paper, a system and method for generating coefficients for use in a digital filter using an iterative adaptive process employing a least mean square process is described. But, the method is not suitable for the case of noisy data.