Method and apparatus for radio receiver equalization
First Claim
Patent Images
1. A method comprising:
- estimating a cutoff frequency for an analog filter;
causing a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter;
determining a residual cutoff frequency mismatch for the analog filter; and
causing an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch.
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Abstract
A method, apparatus and computer program product are configured to provide calibration accuracy in an analog filter. In this regard, a method is provided that includes estimating a cutoff frequency for an analog filter. The method further includes causing a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter. The method also includes determining a residual cutoff frequency mismatch for the analog filter. The method also includes causing an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch.
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Citations
20 Claims
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1. A method comprising:
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estimating a cutoff frequency for an analog filter; causing a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter; determining a residual cutoff frequency mismatch for the analog filter; and causing an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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a processor and a memory including software, the memory and the software configured to, with the processor, cause the apparatus to at least; estimate a cutoff frequency for an analog filter; cause a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter; determine a residual cutoff frequency mismatch for the analog filter; and cause an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product comprising:
at least one computer readable non-transitory memory medium having program code stored thereon, the program code which when executed by an apparatus cause the apparatus at least to; estimate a cutoff frequency for an analog filter; cause a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter; determine a residual cutoff frequency mismatch for the analog filter; and cause an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch. - View Dependent Claims (16, 17, 18, 19, 20)
Specification