带交错ADC系统中子ADC失配误差的显式分析

2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI:10.1109/I2MTC.2019.8827066

Yu Zhao, P. Ye, Jinpeng Song, Jie Meng, Kuojun Yang, Jian Gao

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引用次数: 0

摘要

本文首先对子adc间存在偏置、增益和时间失配的带宽交错(BI)系统进行了确定性描述。分析表明，增益和时间失配引起的杂散频谱与输入信号相关，而偏置失配引起的杂散频谱与输入信号无关，但与各子带本振的频率有关。分析结果可作为BI系统中子带间失配误差校正的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Explicit analysis of subADCs mismatch errors in band-interleaved ADC systems

A deterministic description of bandwidth-interleaved (BI) system with offset, gain and time mismatches among subADCs is firstly developed in this paper. Based on the analysis, spurious spectra caused by gain and time mismatches are correlated with the input signal, while spurious spectra caused by offset mismatch are independent with the input signal but related to the frequency of the local oscillator in each subband. The analysed results can be used as a reference for calibration of mismatch errors among the subbands in BI systems.

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2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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