A method for evaluating the decimation and error correction of a pulse waveform measurement system

By employing proportional extraction and multi-starting-point expansion methods and applying a correction factor p, the problems of high cost, long cycle, and large error in ADC sampling rate evaluation in existing technologies are solved, achieving efficient and accurate evaluation of ADC sampling rate in high-energy physics experiments.

CN122345827APending Publication Date: 2026-07-07UNIV OF SCI & TECH OF CHINA
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Patent Information

Application Number
CN202610814834.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies cannot efficiently and accurately evaluate ADC sampling rates in pulse waveform measurement systems, resulting in high hardware replacement costs, long development cycles, and distorted evaluation results, failing to meet the precise measurement requirements of multi-channel readout electronics.

Method used

By using proportional sampling and multi-starting-point expansion methods, combined with a correction factor p to modify the evaluation parameter σ, simulations of outputs at different sampling rates are achieved, avoiding random errors and adapting to the amplitude fluctuation characteristics of high-energy physics experiments, thus optimizing the accuracy of the evaluation parameters.

Benefits of technology

Without replacing the hardware, the development cost and cycle of multi-channel readout electronics have been reduced, the evaluation accuracy, adaptability and reliability have been improved, and the error problem of sampling rate evaluation has been solved.

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Abstract

The application discloses a kind of extraction and error correction methods for evaluating the sampling rate of pulse waveform measurement system, to sample rate f0 The output waveform of detector is sampled, and high sampling rate original waveform is obtained;According to the target sampling rate set, select multiple extraction ratios, based on different starting points, perform multiple sets of extraction operations with the same ratio on the original waveform, and expand to obtain multiple sets of waveforms with uniformly distributed sampling phases;According to the application scenario, select and calculate the evaluation parameter σ;According to the amplitude distribution estimation error caused by the correlation between waveforms during the extraction process, introduce the correction factor p To modify the evaluation parameter;The contribution ratio of the error caused by the correlation between waveforms to the evaluation parameter is further modified to the evaluation parameter σ, to realize the accurate evaluation of waveform measurement system.The method can greatly reduce the research and development cost and cycle of multi-channel readout electronics, and the uniform sampling phase can effectively avoid random error.
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