Prestack depth migration provides a powerful tool for velocity analysis in complex media. Both prominent approaches to velocity analysis—depth-focusing analysis and residual-curvature analysis, rely on approximate formulas to update velocity. Generally, these formulas are derived under the assumptions of horizontal reflector, lateral velocity homogeneity, or small offset. Therefore, the convent...

Offset plane wave migration and common-azimuth migration are among the most promising wave-equation migration methods for efficiently imaging 3-D marine data sets. Offset plane wave migration has some computational advantages over common-azimuth migration, but common-azimuth is more accurate. Sub-salt images produced by commonazimuth migration are better focused than the corresponding images pr...

Abstract The ejecta velocities of Type Ia supernovae (SNe Ia), as measured by the Si ii λ 6355 line, have been shown to correlate with other supernova properties, including color and standardized luminosity. We investigate these results using Foundation Supernova Survey, a spectroscopic data release presented here, photometry analyzed SALT2 light-curve fitter. find that do not show significant ...

CUEX is an algorithm that from recordings of solo music performances extracts the tone parameters for tempo, sound level, articulation, onset velocity, spectrum, vibrato rate, and vibrato extent. The aim is to capture the expressive variations in a music performance, rather than to identify the musical notes played. The CUEX algorithm uses a combination of traditional methods to segment the aud...

ADC-based receivers process the received data in the digital domain, eliminating the need for much of the analog front end. In addition, a feed-forward blind architecture [1,2] eliminates the feedback loop between digital and analog domains so that the ADC and digital CDR can be designed and simulated independently. Previous works [1,2] sampled the incoming data at 2 samples per UI and at 1.45 ...

ADC-based receivers process the received data in the digital domain, eliminating the need for much of the analog front end. In addition, a feed-forward blind architecture [1,2] eliminates the feedback loop between digital and analog domains so that the ADC and digital CDR can be designed and simulated independently. Previous works [1,2] sampled the incoming data at 2 samples per UI and at 1.45 ...

PURPOSE Eddy current induced velocity offsets are of concern for accuracy in cardiovascular magnetic resonance (CMR) volume flow quantification. However, currently known theoretical aspects of eddy current behavior have not led to effective guidelines for the optimization of flow quantification sequences. This study is aimed at identifying correlations between protocol parameters and the result...