Multi-source multi-scale source-independent full waveform inversion
نویسندگان
چکیده
منابع مشابه
Multi-source Waveform Inversion with Deblurring
The theory of preconditioned multi-source waveform inversion is presented where many shot gathers are simultaneously back-propagated to form the gradient of the misfit function. The implication is that, relative to standard waveform inversion, an order of magnitude increase in computational efficiency can be achieved by multi-source waveform inversion. INTRODUCTION Time-domain waveform inversio...
متن کاملAcoustic Multi-source Waveform Inversion with Deblurring
The theory of preconditioned multi-source waveform inversion is presented where many shot gathers are simultaneously back-propagated to form the multisource gradient of the misfit function. Synthetic tests on 2D Marmousi model data show that multi-source waveform inversion using an encoded multi-source deblurring filter as a preconditioner can provide a good inverted model but with less computa...
متن کاملSource synthesis for waveform inversion
Seismologists have long used extended sources, both physical and synthetic, to enhance the effectiveness of data acquisition and processing in various ways. Recently, extended synthetic sources have been suggested as a means to to substantially reduce the computational complexity of waveform inversion. Most proposed synthetic sources for waveform inversion are random in some way. In contrast, I...
متن کاملSource Estimation by Full Wave Form Inversion
We consider the inverse problem of estimating the parameters describing a seismic source, based on time-dependent ground motion recordings at a number of receiver stations. The source is modeled as a point moment tensor forcing, characterized by its location, moment tensor components, start time, and frequency parameter in the time function. In total, there are 11 unknown parameters. We use a n...
متن کاملSource selection problem in multi-source multi-destination multicasting
Multicast is designed to jointly deliver content from a single source to a set of destinations; hence, it can efficiently save the bandwidth consumption and reduce the load on the source. In many important applications, the appearance of multiple sources brings new opportunities and challenges to reduce the bandwidth consumption of a multicast transfer. In this paper, we focus on such type of m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysics and Engineering
سال: 2019
ISSN: 1742-2132,1742-2140
DOI: 10.1093/jge/gxz013