Accession Number:

AD0435515

Title:

ASPECT AND DEVIATION ANGLE

Descriptive Note:

Corporate Author:

STANFORD UNIV CA STANFORD ELECTRONICS LABS

Personal Author(s):

• Croft, T. A.

Report Date:

1964-03-01

Pagination or Media Count:

37.0

Abstract:

The purpose of this paper is twofold first, an attempt is made to define aspect angle and deviation angle in a logical and acceptable manner second, a graphical calculator is supplied in the hope that it will make the calculation of these angles so simple that the definitions will be use without unnecessary approximations. When a target is being observed by some means, it frequently happens that the target is associated with some vector of importance, as for example, its heading or velocity. In this case the observer is very often interested in an aspect angle which is the angle between the vector of interest and the direction of propagation of whatever wave is used for the observation e.g., light, radio, sound, etc.. There are three angles associated with this aspect angle which can normally be measured by an observer with ease the graphs given can then be used to find the true aspect angle.

Descriptors:

• *ANGLE OF ATTACK
• PROPAGATION
• DETECTION
• SOUND
• GEOMETRY
• RADIO WAVES
• GRAPHICS
• LIGHT
• RADAR

Subject Categories:

• Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE