COMPARISON OF PULSE AND FM RADAR ALTIMETERS BASED ON TERRAIN RETURN THEORY
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1961
- Accession Number
- AD0260171
Entities
People
- David L. Quinlan
Organizations
- University of New Mexico