随后，详细讨论了高速数据采集系统中抖动对数据采集系统信噪比的影响和偏移对正交采样一致性所产生的影响。

Then, we discuss jitter 's influence on Signal-to-Noise Ratio of data acquisition system and skew' s influence on consistency of orthogonal sampling of high speed acquisition system in detail.

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相位抖动：指的是反馈时钟和参考时钟之间上升沿差异与多次随机采样的平均偏移之间的差。

Phase Jitter: refers to the deviation of the FBKCLK rising edge to the REFCLK rising edge with respect to the average offset in a random sample of cycles.

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本文分析了采样钟频率偏移对MIMO-OFDM系统接收信号的影响，提出了一种适用于MIMO-OFDM 系统的采样钟频率偏移估计算法，即幅度加权最小平方估计法。

The effect of sample frequency offset on MIMO-OFDM signals is exploited. An amplitude weighted least squares estimation of sample frequency offset in MIMO-OFDM systems is presented.

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