Each channel oversamples the required input signals, and uses several stages of digital filtering and decimation to reduce the oversampled data down to the required user sampling rate.

• 每个通道都对被测量进行超采样，多级数字滤波之后（有规律地）舍弃某些超采样点，使得最终（出现在系统数字底板上的）采样频率与用户所设定的采样频率相一致。