Titlebook: Of Poles and Zeros; Fundamentals of Digi Frank Scherbaum Book 1996 Kluwer Academic Publishers 1996 digital signal processing.filtering.geop

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Modern Approaches in Geophysicshttp://image.papertrans.cn/o/image/700635.jpg

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https://doi.org/10.1007/978-94-010-9572-3digital signal processing; filtering; geophysics; signal processing; wavelet

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Introduction,r attention has been focused on the earthquake source. Since, however, the ground motion recorded at a seismic station on the earth’s surface differs considerably from seismic signals generated by the earthquake source a major problem in seismology is the separation of the original source signal from other effects.

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The seismometer,So far we have encountered several methods for describing linear time invariant systems. We have learned to design and analyse simple filters in terms of the poles and zeros of the transfer function. We have also seen some relationships between the different approaches.

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Analog-to-digital conversion,In this chapter we will look at the properties of analog-to-digital converters (ADC) and the limitations they introduce into sampled data. We will discuss the relationship between the resolution and the dynamic range of ADCs and end this chapter by simulat­ing techniques for improving the dynamic range of ADCs by gain ranging and oversam­pling.

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The measurement of wavelet parameters from digital seismograms,Standard observational measurements from seismograms only include a relatively small number of signal parameters such as onset times, amplitudes, rise times, pulse widths, signal moments and onset polarities of particular wave groups (Fig. 10.1).

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978-0-7923-4013-3Kluwer Academic Publishers 1996

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