A Novel Weak Signal Detection Method of Electromagnetic LWD Based on a Duffing Oscillator

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dc.creatorWu, Aiping
dc.creatorMwachaka, Saleh M.
dc.creatorPei, Yanliang
dc.creatorFu, Qingqing
dc.date2020-10-23T12:29:48Z
dc.date2020-10-23T12:29:48Z
dc.date2018-06-21
dc.date.accessioned2022-10-21T11:33:45Z
dc.date.available2022-10-21T11:33:45Z
dc.descriptionJournal Article
dc.descriptionThis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The logging while drilling (LWD) electromagnetic weak signal detection model of a Duffing oscillator based on a one-dimensional nonlinear oscillator is established. The influences of noise on Duffing oscillator dynamic behavior of periodic driving force are discussed and evaluate the oscillator weak signal detection mechanism based on a phase change trajectory diagram. The improved Duffing oscillator is designed and applied to detect the electromagnetic logging signal resistivity at the drill bit using the time-scale transformation method. The simulation results show that the nonlinear dynamic characteristics of the Duffing oscillator are very noticeable, the Duffing circuit is very sensitive to detect the tested signal, and it has a reasonable level of immunity to noise. The smaller the amplitude of the tested signal, the more sensitive the circuit is to the signal, the better the antinoise system performance, and the lower the signal-to-noise ratio (SNR).
dc.formatapplication/pdf
dc.identifierhttp://154.72.94.133:8080/xmlui/handle/123456789/131
dc.identifier.urihttp://hdl.handle.net/123456789/86100
dc.languageen
dc.publisherJournal of Sensors
dc.titleA Novel Weak Signal Detection Method of Electromagnetic LWD Based on a Duffing Oscillator
dc.typeArticle

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