Accession Number:

AD0260171

Title:

COMPARISON OF PULSE AND FM RADAR ALTIMETERS BASED ON TERRAIN RETURN THEORY

Descriptive Note:

Corporate Author:

NEW MEXICO UNIV ALBUQUERQUE ENGINEERING EXPERIMENT STATION

Personal Author(s):

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

Theoretical expressions are employed in describing radar terrain return at near-vertical incidence as a basis for comparing pulse and FM radar altimeters. The relationships resulting from a comparison of this nature will facilitate application of the extensive information gained in pulse radar return studies to the investigation of FM radar terrain return, and the associated design of FM radar altimeters. The theoretical expressions are first considered individually for each radar system, and then compared un er identical operating conditions. The similarity of the returns, as presented on a pulse radarA-scope and an FM radar spectrum analyzer, suggests a method of comparing the 2 radar systems for, if properly manipulated, the expressions for return are identical in mathematical form. With this relationship between the expressions for terrain return as a basis of comparison, additional relationships are obtained by considering similar alteration and Fourier transformation of the related expressions, and the system functions associated with these operations. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE