Digital correction of frequency-response errors in bandwidth-interleaved ADCs
Digital correction of frequency-response errors in bandwidth-interleaved ADCs
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DOI：
10.1049/el.2016.2433
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发表时间：
2016-08
影响因子：
1.1
通讯作者：
Jinpeng Song;Shulin Tian;Lianping Guo;Kuojun Yang
中科院分区：
文献类型：
--
作者：
Jinpeng Song;Shulin Tian;Lianping Guo;Kuojun Yang
多通道带宽交错（BI）框架与数字后端校正失配误差的探索，同时提高采样率和ADC的带宽。除了考虑与采样相关的信道频率响应失配和混叠误差外，还引入幅度响应的自相关矩阵来评估相邻子带之间重叠抵消的性能。仿真结果和分析计算验证了所提出的校正方法的有效性。
A multichannel bandwidth-interleaved (BI) framework with digital back-end correction of mismatch errors is explored to simultaneously increase the sample-rate and bandwidth of the ADCs. In addition to the consideration of channel frequency-response mismatch and aliasing error associated with sampling, the autocorrelation matrix of magnitude response is introduced to evaluate the performance of overlapping cancellation between the nearby subbands. Simulation results and analytical calculations are provided to verify the efficacy of the proposed correction approach.