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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 613025, 7 pages
http://dx.doi.org/10.1155/2013/613025
Research Article

A Self-Adaptive Frequency Response Compensation Method for a TIADC System

School of Automation Engineering, University of Electronic Science and Technology of China, China

Received 4 January 2013; Accepted 25 March 2013

Academic Editor: Xing-Gang Yan

Copyright © 2013 Peng Ye et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Time interleaving is one of the most efficient techniques employed in high-speed sampling systems. However, the frequency response mismatch among different channels will create distortion tones that degrade the system performance. In this paper, a self-adaptive frequency response mismatch compensation method is presented, where the design of compensation filter is optimized with a self-adapting strategy. This digital postprocessing technique realizes the compensation of frequency response effectively and also the increase of the digital bandwidth of the acquisition system. MATLAB-based simulation and an actual two-channel acquisition system test verify the effectiveness of the algorithm.