HUANG Liang, LIAO Yuan. Fault Samples Acquisition and Fault Feature Verification of Analog Filters[J]. Chinese Journal of Electronics, 2017, 26(1): 122-127. doi: 10.1049/cje.2016.06.015
 Citation: HUANG Liang, LIAO Yuan. Fault Samples Acquisition and Fault Feature Verification of Analog Filters[J]. Chinese Journal of Electronics, 2017, 26(1): 122-127.

# Fault Samples Acquisition and Fault Feature Verification of Analog Filters

##### doi: 10.1049/cje.2016.06.015
Funds:  This work is supported by the Fundamental Research Funds for the Central Universities (No.2013JBM016), Studying Abroad Funding of China Scholarship Council (No.201307095030), the National Natural Science Foundation of China (No.61575035), and Specialized Research Fund for the Doctoral Program of Higher Education (No.20130009120042).
• Rev Recd Date: 2015-06-11
• Publish Date: 2017-01-10
• The frequency of the input signal is selected specially to ensure that the input frequency just exceeds the cut-off frequency of analog filters. Because input signal is restrained partly by the attenuation of analog filters, output signal is sensitive to the variation of fault components. The peak voltage of key points is measured to construct fault samples of analog filters. The relationship between fault components and fault samples is analyzed to verify that fault samples have strong fault information of analog filters. The experimental results show that high-quality fault samples can be acquired efficiently, and fault feature of samples can be verified objectively by the present method.
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