Diffraction theory modeling of near-forward radio wave scattering from particle clusters

Details Diffraction theory modeling of near-forward radio wave scattering from particle clusters Diffraction theory modeling of near-forward radio wave scattering from particle clusters

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009icar..204..290t&link_type=abstract

Icarus, Volume 204, Issue 1, p. 290-302.

Statistics

Computation

Scientific paper

We investigate the use of diffraction theory as an alternative to solving the full electromagnetic problem of near-forward scattering by a collection of dielectric spheres of arbitrary spacing and orientation. We define an amplitude screen, which is constructed by projecting the shadows of a cluster of spheres onto a plane perpendicular to the wave vector of the incident radio wave. The far-field (Fraunhofer) diffraction pattern of the amplitude screen is then computed and compared with the Mie-theoretic result. We show that for EM scattering from a cluster of electrically large spheres—both singly-sized and belonging to a size distribution—there is excellent agreement between the exact Mie solution and its diffraction theory approximation when near-forward scattering is the angular range of interest. This excellent agreement holds over a broad range of particle separation and orientation configurations relative to the incidence direction. It is also achieved at a much reduced computational cost compared with an exact solution of the electromagnetic interaction problem. Fortified by these results, the authors have applied diffraction theory to the analysis of Cassini radio occultation data, thereby detecting fine-scale structure in Saturn’s rings [Thomson, F.S., Marouf, E.A., Tyler, G.L., French, R.G., Rappoport, N.J., 2007. Periodic microstructure in Saturn’s rings A and B. Geophys. Res. Lett. 34, L24203].

Affiliated with

Also associated with

No associations

Rating

Diffraction theory modeling of near-forward radio wave scattering from particle clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Diffraction theory modeling of near-forward radio wave scattering from particle clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffraction theory modeling of near-forward radio wave scattering from particle clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1266223