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Automatically adjusting anti-ghosting filter coefficients when the coefficients exceed particular values
Automatically adjusting anti-ghosting filter coefficients when the coefficients exceed particular values
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机译:当系数超过特定值时自动调整防鬼影滤波器系数
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摘要
A method and apparatus for the self-correcting of anti- ghosting filter coefficients is provided. A plurality of coefficients associated with an anti-ghosting filter are monitored as data is received by the filter. The plurality of coefficients are adjusted if one or more of the plurality of coefficients exceed a first value. In one embodiment, the filter is an adaptive baseband equalization filter. If the magnitude of one or more secondary coefficients of the adaptive baseband equalization filter exceed a predetermined factor of the primary coefficient, then the plurality of coefficients are adjusted. In another embodiment, the filter is a lookup table filter. If the magnitude of a coefficient in the lookup table is greater than a predetermined value, the plurality of coefficients are adjusted.
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