Compensation of mismatch errors in a time-interleaved...

Details Compensation of mismatch errors in a time-interleaved... Compensation of mismatch errors in a time-interleaved...

2011-08-30

2011-08-30

Lauture, Joseph (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S155000

Reexamination Certificate

active

08009070

ABSTRACT:
A method for the compensation of frequency-response mismatch errors in M-channel time-interleaved ADCs. The compensation is done through an M-periodic time-varying filter hn(k)=hn mod M(k) (2), or, equivalently, a set of M time-invariant filters hn(k), n=0, 1, . . . , M−1. The overall compensation system is constructed by determining the M filter impulse responses hn(k) through M separate matrix inversions, where the size of the matrices equals the filter impulse response length. Also, a compensated M-channel time-interleaved ADC based on and performing the method.

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