Quantization Noise Shaping for Information Maximizing ADCs
Information Theory
2013-05-14 v1 math.IT
Abstract
ADCs sit at the interface of the analog and digital worlds and fundamentally determine what information is available in the digital domain for processing. This paper shows that a configurable ADC can be designed for signals with non constant information as a function of frequency such that within a fixed power budget the ADC maximizes the information in the converted signal by frequency shaping the quantization noise. Quantization noise shaping can be realized via loop filter design for a single channel delta sigma ADC and extended to common time and frequency interleaved multi channel structures. Results are presented for example wireline and wireless style channels.
Cite
@article{arxiv.1305.2801,
title = {Quantization Noise Shaping for Information Maximizing ADCs},
author = {Arthur J. Redfern and Kun Shi},
journal= {arXiv preprint arXiv:1305.2801},
year = {2013}
}
Comments
4 pages, 6 figures