Spatial Correlation in Acoustic‐Structural Coupling

Spatial Correlation Testing for Errors in Panel Data Regression Model

To investigate the spatial error correlation in panel regression models, various statistical hypothesizes and testings have been proposed. This paper, within introduction to spatial panel data regression model, existence of spatial error correlation and random effects is investigated by a joint Lagrange Multiplier test, which simultaneously tests their existence. For this purpose, joint Lagrang...

Spatial Correlation

Correlation-Compressed Direct Coupling Analysis

Chen-Yi Gao, Hai-Jun Zhou1,3,5∗, and Erik Aurell2,4† Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China Department of Computational Biology, KTH-Royal Institute of Technology, SE-10044 Stockholm, Sweden School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China Depts of Applied Physics an...

Correlation with a spatial light modulator having phase and amplitude cross coupling.

In correlation filtering a spatial light modulator is traditionally modeled as affecting only the phase or only the amplitude of light. Usually, however, a single operating parameter affects both phase and amplitude. An integral constraint is developed that is a necessary condition for optimizing a correlation filter having single parameter coupling between phase and amplitude. The phase-only f...

Measuring spatial coupling in inhomogeneous dynamical systems

We propose coherence as a tool to quantify spatiotemporal dynamics, in particular, in spatially inhomogeneous dynamical systems. We demonstrate coherence to be an appropriate measure of predictability and, hence, spatial coupling in nonlinear systems, using analysis and via experimental results from a circular jet flow. Coherence measurements reveal sizable regions of strong spatial coupling in...