电子学报Issue(5)：912-917,6.DOI:10.3969/j.issn.0372-2112.2014.05.012
一种新的并行交替采样系统误差估计方法
A Novel Multi-Channel Mismatch Estimation Method for Parallel Time-Interleaved System
摘要
Abstract
A major bottleneck in realizing a time-interleaved system is mismatches among the sub-ADCs ,which may greatly degrade the receiver performance .In this paper ,we investigated a novel mismatch estimation method ,in which the coupling between time errors and gain errors is solved by using the rotational relationship between the signal subspaces with respect to two adjacent frequency bins .The decoupled mismatch errors can be estimated accurately free of iteration .Moreover ,the presented method is ro-bust to residual offset errors and system noise .The effectiveness of the proposed approach is verified by simulated data .关键词
并行交替采样/模数转换器/时基误差/增益误差/旋转不变性Key words
time-interleaved sampling/analog-to-digital converter (ADC)/timing mismatch/gain mismatch/Rotational in-variance分类
信息技术与安全科学引用本文复制引用
马仑,廖桂生,杨鹏,明洋..一种新的并行交替采样系统误差估计方法[J].电子学报,2014,(5):912-917,6.基金项目
国家自然科学基金（No ．61202438）；陕西省自然科学基金（No ．2011 JQ8041）；国家级大学生创新训练计划 （）
