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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lili Zhang Sixin Liu Junjun Wu |
| Copyright Year | 2010 |
| Description | Author affiliation: College of Geo-Exploration Science and Technology; Jilin University; Changchun 130026; China (Lili Zhang; Sixin Liu; Junjun Wu) |
| Abstract | Layered media attenuation algorithm using constant Q model for ground penetrating radar (GPR) signals processing is introduced in the paper. We can use different Q value to describe different layered media. Over the bandwidth of a GPR wavelet, the attenuation of electromagnetic waves in many geological materials is approximately linear with frequency. As a result, the change in shape of a radar pulse as it propagates through these materials can be well described using one parameter, Q, related to the slope of the linear region. Under the assumption of a frequency-independent Q model, we present a method for the estimation of layered media Q from GPR data based on a technique developed for seismic attenuation tomography using the frequency shift method, Q is computed from the downshift in the dominant frequency of the GPR signal with time. And the downshift is obtained by using the generalized S-transform. Tests on synthetic vertical radar profiling (VRP) data indicate that this method can be very effective at estimating layered media Q value of GPR signals. |
| File Size | 813136 |
| File Format | |
| ISBN | 9781424472352 |
| e-ISBN | 9781424472376 |
| DOI | 10.1109/ICCASM.2010.5623199 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-10-22 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ground penetrating radar Vertical radar profiling(VRP) Frequency shift Shape Layered media Estimation Generalized S-transform Time frequency analysis Nonhomogeneous media Attenuation Frequency estimation Q model |
| Content Type | Text |
| Resource Type | Article |
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