Adaptive Equalization for Calibration of Subband Hybrid Filter Banks A/D Converters

Zhiguo Song (1) , Caroline Lelandais-Perrault (1) , Daniel Poulton (1) , Philippe Benabes (1)

1 E3S - Supélec Sciences des Systèmes

Hybrid Filter Banks (HFB) A/D converters (ADC) are attractive to software-defined radio application, however their high sensitivity to analog imperfections is still a bottleneck for their realization. In this paper, adaptive equalization is applied for calibrating a subband HFB ADC. Thus, the synthesis filter coefficients are iteratively adjusted for compensating the mis-matches between the analog part and the digital part. Simulations show that the robustness of subband HFB ADC is therefore improved.

Domains: Engineering Sciences [physics]; Electronics; Engineering Sciences [physics]; Signal and Image processing; Computer Science [cs]; Signal and Image Processing

Zhiguo Song, Caroline Lelandais-Perrault, Daniel Poulton, Philippe Benabes. Adaptive Equalization for Calibration of Subband Hybrid Filter Banks A/D Converters. IEEE 19th European Conference on Circuit Theory and Design (ECCTD'09), Aug 2009, Antalya, Turkey. pp.45-48. ⟨hal-00441201⟩