研究目的
Investigating the influence of the frequency bandwidth limit on the deconvolution processing for correcting the step response of digitizers in impulse voltage measurement.
研究成果
The deconvolution correction method effectively reduces the errors introduced by non-ideal step responses of digitizers to less than 0.1%, making them negligible in impulse measurement. The study demonstrates the importance of selecting an appropriate frequency bandwidth limit for deconvolution to minimize noise and Gibbs phenomenon.
研究不足
The study highlights the sensitivity of deconvolution to noise and the potential for the deconvolution calculation to become ill-posed. Further work is needed to verify that the measured step response is the real step response of the digitizer for impulse measurement.
1：Experimental Design and Method Selection:
The study involves deconvolution method to correct the step response of digitizers, focusing on the influence of different frequency bandwidth limits.
2：Sample Selection and Data Sources:
Step responses recorded with three different commercial digitizers were used.
3：List of Experimental Equipment and Materials:
Commercial digitizers (Type A, B, C) with specified sample rates and bandwidths.
4：Experimental Procedures and Operational Workflow:
The step response of the digitizer was corrected using deconvolution with varying frequency bandwidth limits, and the impact on impulse waveform parameters was analyzed.
5：Data Analysis Methods:
Parameters of the corrected step responses and the errors introduced to an ideal LI waveform were calculated and compared.
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