beam input aperture 输入孔径
The jitter error brought in by the aperture jitter increases as the frequency increase of the input signal in high speed data acquisition systems, thus it degrades the system's SNR.
结果表明，孔径抖动引起的孔径误差随着高速数据采集系统输入信号频率的升高而增大，由此将引起系统信噪比的下降。
The part features very tight aperture delay matching between the two input sample and hold amplifiers.
该器件的两个输入采样保持放大器之间具备高匹配度的孔径延迟。
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