Application Of Acoustic Signal Processing Techniques To Seismic Data
DOWNLOAD
Download Application Of Acoustic Signal Processing Techniques To Seismic Data PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Application Of Acoustic Signal Processing Techniques To Seismic Data book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Application Of Acoustic Signal Processing Techniques To Seismic Data
DOWNLOAD
Author : Cynthia E. Irvine
language : en
Publisher:
Release Date : 1977
Application Of Acoustic Signal Processing Techniques To Seismic Data written by Cynthia E. Irvine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Earthquakes categories.
In order to obtain an effective discriminant between earthquakes and explosions, techniques which originally had been developed for acoustic signal processing have been applied to seismic data. These techniques include Fourier analysis and related applications software as well as interactive graphics displays of the data. A numeric has been obtained which may provide a useful discriminant between earthquakes and explosions. In conjunction with this investigation, a large amount of seismic data has been consolidated. These data are discussed. (Author).
Application Of Physics Based Underwater Acoustic Signal And Array Processing Techniques To Infrasound Source Localization
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2001
Application Of Physics Based Underwater Acoustic Signal And Array Processing Techniques To Infrasound Source Localization written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
The purpose of this project is to apply physics-based signal and array processing techniques, recently developed in the area of underwater acoustics, to atmospheric infrasound data and co-located seismic field data. The source of the infrasound data is the newly installed International Monitoring System (IMS) infrasound station at Pinon Flat (PFO). The seismic data are being collected by the Southern California ANZA seismic network. Installation of the eight sensors that comprise the infrasound station at PFO was completed by mid April of this year. The space filters of the array (18 m for the inner centered triangle elements and 70 m for the outer centered triangle elements) also are nearly all in place. Preliminary data collected by this array contain some signals with significant spatial coherence across the array aperture. In particular, a large event with high signal-to-noise ratio was recorded on 23 April. Analyses of the arrival structure of this signal are presented in this paper. In addition, the spatial and temporal properties of the background noise in relation to the local environmental conditions are discussed. A focused experiment involving the temporary installation of additional infrasound sensors to provide larger array aperture is being planned for this summer. A description of the planned experiment is presented below.
Advanced Digital Signal Processing Of Seismic Data
DOWNLOAD
Author : Wail A. Mousa
language : en
Publisher: Cambridge University Press
Release Date : 2020-01-16
Advanced Digital Signal Processing Of Seismic Data written by Wail A. Mousa and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-16 with Business & Economics categories.
Presents an advanced overview of Digital Signal Processing and its applications to exploration seismology, for electrical engineers, geophysicists and petroleum professionals.
Full Waveform Acoustic Data Processing
DOWNLOAD
Author : Jean-Luc Mari
language : en
Publisher: Editions TECHNIP
Release Date : 1994
Full Waveform Acoustic Data Processing written by Jean-Luc Mari and has been published by Editions TECHNIP this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Science categories.
This book is an initiation to the use of the acoustic method for characterizing formations. The use of acoustic well logging to determine the velocity of compressional waves in formations is common practice and dates back a long time (1952). Full waveform acoustic data acquisition enables loggers to apply signal processing techniques to acoustic data. Such techniques are similar to the ones used in seismic processing. The information obtained by acoustic data processing can be used for a more thorough characterization of formations. The present book is made up of four parts, each describing a specific application of signal processing used for acoustic data.
Applications Of Sensor Arrays In Acoustic And Seismic Signal Processing
DOWNLOAD
Author : Peng Xie
language : en
Publisher:
Release Date : 2009
Applications Of Sensor Arrays In Acoustic And Seismic Signal Processing written by Peng Xie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Acoustooptical devices categories.
"This work investigates the applications of sensor arrays in the areas of acoustic and seismic signal processing. It comprises three papers. The first paper explores the problem of blind source separation (BSS) for convolutive acoustic signals. It concentrates on the well known permutation and amplitude problems in frequency-domain BSS and proposes a new hybrid approach to solve them. This approach connects the separation processes across all frequency bins, and relies on a novel permutation control unit. This framework could greatly reduce computational load and improve separation performance. Synthesized and real-world experiments demonstrate its efficiency. The second paper investigates a new array beamforming technique for noise reduction and speech enhancement in cars. The proposed beamformer, called a near-field regionally constrained generalized sidelobe canceller (NRC-GSC), can enhance the capability of both direction and distance discrimination in reverberant environments. Experiments in simulated automobile cabins show good noise and interference suppression for in-car sound sources. The third paper examines the role that array processing techniques can play in the detection of underground tunnels. It investigates the attenuation analysis of Rayleigh waves (AARW) method, designs a data acquisition scheme, and proposes a new post-processing approach to reduce the influence of subsurface anomalies and instrument sensitivity. It employs array processing techniques and greatly improves the accuracy of traditional tunnel detection methods, allowing engineers to determine tunnel locations easily and reliably. Experimental results verify its effectiveness"--Abstract, leaf iv.
A New Signal Processing Method For Acoustic Emission Microseismic Data Analysis
DOWNLOAD
Author : Charles Mborah
language : en
Publisher:
Release Date : 2018
A New Signal Processing Method For Acoustic Emission Microseismic Data Analysis written by Charles Mborah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
"The acoustic emission/microseismic technique (AE/MS) has emerged as one of the most important techniques in recent decades and has found wide applications in different fields. Extraction of seismic event with precise timing is the first step and also the foundation for processing AE/MS signals. However, this process remains a challenging task for most AE/MS applications. The process has generally been performed by human analysts. However, manual processing is time consuming and subjective. These challenges continue to provide motivation for the search for new and innovative ways to improve the signal processing needs of the AE/MS technique. This research has developed a highly efficient method to resolve the problems of background noise and outburst activities characteristic of AE/MS data to enhance the picking of P-phase onset time. The method is a hybrid technique, comprising the characteristic function (CF), high order statistics, stationary discrete wavelet transform (SDWT), and a phase association theory. The performance of the algorithm has been evaluated with data from a coal mine and a 3-D concrete pile laboratory experiment. The accuracy of picking was found to be highly dependent on the choice of wavelet function, the decomposition scale, CF, and window size. The performance of the algorithm has been compared with that of a human expert and the following pickers: the short-term average to long-term average (STA/LTA), the Baer and Kradolfer, the modified energy ratio, and the short-term to long-term kurtosis. The results show that the proposed method has better picking accuracy (84% to 78% based on data from a coal mine) than the STA/LTA. The introduction of the phase association theory and the SDWT method in this research provided a novelty, which has not been seen in any of the previous algorithms"--Abstract, page iii.
Data Based Acoustic And Seismoacoustic Sensing Methods
DOWNLOAD
Author : Selda Yildiz
language : en
Publisher:
Release Date : 2014
Data Based Acoustic And Seismoacoustic Sensing Methods written by Selda Yildiz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The emphasis of this thesis is to use differencing approaches to develop data-based acoustic and seismoacoustic sensing methods (actively and passively) with minimal a priori information and modeling; such as extracting seismic information without using seismometers, performing an active localization in a complex medium without an accurate propagation model, and performing an active probing without active sources. The differencing methods are explored to extract information from ocean and laboratory data. Chapter two provides a simple vector sensor emulation analysis by differencing the acoustic pressure fields. We test this concept by processing hydroacoustic data from Comprehensive Nuclear-Test-Ban Treaty Organization's (CTBTO) International Monitoring System (IMS) stations in the Indian Ocean, and comparing the obtained simulated seismograms to velocity records from a nearby island seismic station. We demonstrate the procedure with simple analyses of records of the Great Sumatra-Andaman Earthquake of 2004, and show that water column data can be used to emulate seismometer measurements. The demonstrated vector sensor emulation method provides a potential opportunity to employ ocean remote sensing methodologies in deep water regions, therefore providing supplemental seismic measurements. Chapter three demonstrates a target localization using a data-based sensitivity kernel (SK), a perturbation approach, without using a complicated model. Experimental confirmation of the method is obtained using a cylindrical tank and an aggregate of ping-pong balls as targets surrounded by acoustic sources and receivers in a multistatic configuration. The differencing approach is implemented as amplitude change between target-free and target-present fields. The experimental observations show that target localization is successful using only the direct path arrivals, and improves by including later arrivals from the tank wall and the bottom/surface reverberation. As a follow up study, ambient noise resident in the tank is analyzed with a motivation of active probing without active sources. Using the same laboratory-set up as in Chapter three, we show that it is possible to extract the acoustic response of the tank using only ambient noise recorded in the tank. The work presented here is a validation of early work in the ocean environment.
Digital Signal Processing Handbook On Cd Rom
DOWNLOAD
Author : VIJAY MADISETTI
language : en
Publisher: CRC Press
Release Date : 1999-02-26
Digital Signal Processing Handbook On Cd Rom written by VIJAY MADISETTI and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-02-26 with Computers categories.
A best-seller in its print version, this comprehensive CD-ROM reference contains unique, fully searchable coverage of all major topics in digital signal processing (DSP), establishing an invaluable, time-saving resource for the engineering community. Its unique and broad scope includes contributions from all DSP specialties, including: telecommunications, computer engineering, acoustics, seismic data analysis, DSP software and hardware, image and video processing, remote sensing, multimedia applications, medical technology, radar and sonar applications
Acoustic And Seismic Signal Processing For Personnel And Vehicle Bearing Estimation
DOWNLOAD
Author : Hernan R. Romero
language : en
Publisher:
Release Date : 2006
Acoustic And Seismic Signal Processing For Personnel And Vehicle Bearing Estimation written by Hernan R. Romero and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Signal processing categories.
Abstract: This thesis presents an experimental study on the feasibility of tracking personnel and vehicles through use of both passive acoustic and passive seismic sensors. This study is performed through a number of field data collections and data analyses. Field experiment data from acoustic microphone arrays were analyzed to determine the applicability of broadband array processing techniques for estimating the direction-of-arrival of vehicles, personnel and impulsive acoustic events in an outdoor urban environment. For these subjects, approximate detection ranges and bearing estimation errors were empirically evaluated. In addition, seismic array processing techniques were studied. First, the ground propagation velocity characteristics were studied using impulsive signal measurements and time-difference of arrival estimates. Second, localization experiments were performed using geophone arrays in both distributed and clustered geometries. The localization results were analyzed in terms of bias and standard deviation, and the impact of errors in the propagation velocity estimates over these metrics was also studied.
Acoustic And Seismic Signal Processing For Personnel Detection And Localization
DOWNLOAD
Author : Eric Edmund Case
language : en
Publisher:
Release Date : 2006
Acoustic And Seismic Signal Processing For Personnel Detection And Localization written by Eric Edmund Case and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Acoustooptics categories.
Abstract: In this thesis, personnel detection, direction-of-arrival estimation, and localization with unattended seismic ground sensors are studied through a combination of data collections, experimentation, and data analysis. In addition, direction-of-arrival estimation using seismic and acoustic sensors jointly is studied. A spectral-based approach that leverages the natural periodicity of human locomotion is tested for both range and detection probability. The results suggest that spectral-based detection is restricted to scenes with a limited number of personnel and that geology and environmental conditions have substantial effects on detection performance. For bearing estimation, joint processing using an acoustic array collocated with a geophone is considered. Footstep occurrences are detected with the seismic sensor, and bearings are estimated using the acoustic array at these detection times. Seismic- only methods that use a single tn-axis geophone are discussed as well. Accuracy probability and mean absolute error are used to characterize the performance of these estimators. Lastly, an investigation into seismic array processing is undertaken. Profiles of ground propagation characteristics are first determined from experiments of timedelay estimation and velocity estimation. Localization experiments are then conducted to quantify localization error.