Accession Number:

AD0781818

Title:

A Model for Field Aligned Scattering (FAS) from Heater Modified Ionosphere

Descriptive Note:

Final technical rept., (Part 1), Jan 1973-Feb 1974

Corporate Author:

RAYTHEON CO SUDBURY MA

Personal Author(s):

• Rao, Pendyala B.
• Thome, George D.

Report Date:

1974-02-01

Pagination or Media Count:

41.0

Abstract:

The paper describes the current status in the development of the on- frequency scattering model. The presentation adopts a format that is intended to orient the model toward eventual application for systems evaluation. The physical description of the scattering medium which constitutes a basic component to the model is derived from the observations currently at hand. The radar scattering properties of the disturbance are described physically by presenting the concepts of aspect sensitivity and surface of specularity for scattering by way of an optical analogy. The mathematical part contains two levels of sophistication in the model treatment. The simpler approach offers an approximate analytic solution and thereby a first-order systems evaluation capability without resorting to a complex computer code. Finally, a flow chart is given for computer adaptation of the scattering model in its general form.

Descriptors:

• *IONOSPHERIC MODIFICATION
• *RADAR CROSS SECTIONS
• BACKSCATTERING
• COMPUTER APPLICATIONS
• CONTINUOUS WAVES
• ELECTRON DENSITY
• HEATERS

Subject Categories:

• Atmospheric Physics
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE