摘要
研究交替并行模数转换器(TIADC)系统的带宽失配误差效应,并在此基础上,推导出结合4种通道失配误差和量化误差的信纳比(SINAD)的数学表达式。这些公式能够为消除TIADC通道失配误差提供理论依据。最后,通过仿真验证了公式的有效性。
Bandwidth mismatch effect in time-interleaved A/D converter (TIADC) is studied. Formulas of the signal-to-noise-and-distortion ratio ( SINAD ) for combination of four different channel mismatches and quantization errors are proposed. The derived formulas can be used for calibration to compensate for the channel mismatch effects. Simulation results are presented to verify the formulas.
出处
《上海大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第2期125-129,共5页
Journal of Shanghai University:Natural Science Edition
基金
上海市优秀青年教师基金资助项目
上海市重点学科建设资助项目(T0102)
关键词
交替并行模数转换器
带宽失配误差
信纳比
time-interleaved A/D converter (TIADC)
bandwidth mismatch
signal-to-noise-and- distortion ratio (SINAD)