Influence and correction of signal source distortion to evaluation of effective bits of waveform recorders

摘要

In most effective bits evaluation of waveform recorders, the prerequisite is that there is no signal source distortion, or the distortion can be neglected. But when the distortion can be neglected or how it affects the evalu- ation when it can's be neglected it is not determined yet. In this paper, the influence of signal source distortion to The evaluation of the effective bits of waveform recorders Is discussed, then the correction method of the effective Bits error caused by the distortion influence is given. Fi- Nally, the error limit of the effective bits is given and how To selecte the calibrator is introduced. In the end, some Simulation results of the new method in test are de- Scribed.