Accession Number:

AD0606290

Title:

SCATTERING OF ELECTROMAGNETIC WAVES FROM THE DISTURBANCE CAUSED BY A RAPIDLY MOVING BODY IN PLASMAS,

Descriptive Note:

Corporate Author:

BROWN ENGINEERING CO INC HUNTSVILLE ALA

Personal Author(s):

Report Date:

1964-08-01

Pagination or Media Count:

11.0

Abstract:

The scattering of electromagnetic waves by a body moving in a plasma is discussed in detail. General theory covering scattering phenomena is developed with emphasis on a perturbation method which can be used to obtain reasonably accurate differential cross section under two different physical conditions. The general theory is extended to investigate the following two problems the scattering of electromagnetic waves from the disturbance caused by a rapidly moving body in the ionosphere and the scattering of electromagnetic waves from the turbulent wake produuced by a re-entry vehicle. In the first problem, kinetic equations are used to find the frequency spectrum of the electron density fluctuations in terms of which the differential scattering cross-section can be expressed. In the second problem the differential scattering cross-section is obtained in terms of the correlation function for turbulence, which can be estimated by using the correlation length. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE