phase function

phase function

[′fāz ‚fəŋk·shən]
(optics)
The angular distribution of light reflected from an object when it is illuminated by light from a specified direction.
References in periodicals archive ?
Nonetheless, one of the most obvious sources of inaccuracy is certainly the use of independent light scattering approximation to calculate the phase function as well as the scattering and absorption coefficients of the bulk system.
Among my personal favorites are a depiction of a complex, randomly oriented soot aggregate as compared to its equivalent spheres of the same volume and projected area; a drawing of the multiple internal reflections of sunlight by a rain droplet that produce double and even triple rainbows; and illustrations comparing different methods for numerical expansion of the scattering phase function that describes the directionality of the scattered radiation.
The correlation algorithms include the higher-order ambiguity function (HAF) [1], cubic phase (CP) function [2,3], higher-order ambiguity function-integrated cubic phase function (HAF-ICPF) [4], product generalized cubic phase function (PGCPF) [5], and parameters estimation algorithm based on non-uniformly spaced signal sample method [6].
Consequently, using the discrete values assigned to the signal phase function from Fig.
This model, equipped with the moon phase function and two counters indicating the day and month, has a full-skin alligator strap.
Yang, "Generalized high-order phase function for parameter estimation of polynomial phase signal," IEEE Trans.
The atomic displacements caused by, for example, the heterogeneities-islands distributed in this layer, are given by the random phase function [?
The assumption Q [not equal]0 0 is equivalent to the critical point for the phase function log y + [lambda] log x to be quadratically nondegenerate.
This was a structurally stable optical phase function created as an interconnecting lattice of diffraction grating pixels comprised of curved rulings with variable spacings.
The three factors (besides distance) affecting the PSF are (1) the absorption coefficient a, (2) the scattering coefficient b, and (3) the phase function [gamma].
Among schizophrenic patients studied, there's a complete reversal of this normal sleep phase function.
If the detector was considered to be located an infinitesimal amount below the upper surface, we should have to take into account at almost the same instant the wave going upward before reflection and the reflected wave going downward which come from the same ray and have almost the same phase function.