Accession Number:

AD0263434

Title:

BACKSCATTER MEASUREMENTS FROM TARGETS AT X-BAND FREQUENCY. PART 1: TEST EQUIPMENT, PROCEDURES, AND RESULTS

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB CORONA CALIF

Personal Author(s):

Report Date:

1961-07-15

Pagination or Media Count:

1.0

Abstract:

Open-ended Terms F9F, CW Radar. Microwave backscatter measurements were taken at X-band frequency on the nose cone, tail section, and wing of an F9F-2 fighter aircraft and on a complete Ryan KDA drone. The measurement system employed FM-CW autocorrelation techniques, with sinusoidal modulation and third-harmonic detect on. The system sensitivity exceeded 110 db below a 1-mw reference level. Tests of accuracy showed that the return from the system agreed within 1 db with the calculated theoretical return. In addition, the measurement system was repeatable. Measurements were taken at a variety of antenna and target positions by both linear and variable-angle scanning techniques. The measurement technique is described, and data results, obtained by several data-reduction techniques, are presented. Cross-polarization data were taken on the Ryan KDA drone. New data-reduction methods and measurement procedures are suggested. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE