Automatic Detection of Geomagnetic Sudden Commencement Using Lifting Wavelet Filters
نویسندگان
چکیده
This paper proposes a method for detecting geomagnetic sudden commencement (SC) from a geomagnetic horizontal (H) component b y using lifting wavelet lters. Lifting wavelet lters are biorthog-onal wavelet lers containing free parameters. Our method is to learn such free parameters based on some training signals which c o n tain the SC. The learnt w avelet lters have the feature of training signals. Applying such w avelet lters to the test signals, we can detect the time when SC phenomena occurred.
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