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Posts Tagged ‘journals’

Today, my paper on Tunable Mismatch Shaping for Quadrature Bandpass Delta-Sigma Data Converters was published in the Journal of Signal Processing Systems, Volume 65, Number 2, pp 199-210, November 2011.

From the abstract:

This paper presents an architecture for quadrature bandpass mismatch shaping that allows the center frequency of the mismatch suppression band to be tunable over the entire Nyquist range. The approach is based on the previously reported complex-valued tree-based mismatch shaper, and extends this to allow tunable operation. The proposed design has been implemented using VHDL and synthesized to logic gates. The hardware complexity and mismatch shaping performance of the proposed architecture are compared to that of a reference architecture, which uses separate tunable mismatch shapers for each complex component path. Simulation results show consistent mismatch shaping performance across the entire tuning range.

A pre-publication version of the paper can be downloaded here (pdf).

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Today, I was pleased to learn that my paper was selected for inclusion in a special issue of the Journal of Signal Processing Systems on the “Top Picks from the SiPS 2010”. The issue assembles extended versions of the top 7-10 selected papers from the 2010 IEEE Workshop on Signal Processing Systems (SiPS), which took place last year in October, 2010.

Co-authored with my doctoral adviser, Prof. Earl E. Swartzlander, Jr., the paper is titled Tunable Mismatch Shaping for Quadrature Bandpass Delta-Sigma Data Converters and presents a technique that allows the center frequency of the mismatch noise shaping transfer function through a quadrature bandpass delta-sigma DAC to be adjustable over the entire Nyquist range.

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