Accession Number:

ADA275763

Title:

RL/ERCT Automated Swept-Angle Bistatic Measurement System

Descriptive Note:

Rept. for Oct 1985-Jun 1989

Corporate Author:

ROME LAB HANSCOM AFB MA

Personal Author(s):

Report Date:

1993-04-01

Pagination or Media Count:

99.0

Abstract:

A bistatic scattering measurement system well suited to support basic research in target scattering is described. The system can measure bistatic scattering from near backscatter through forward scatter. At X-band frequency, scattering levels of -50 dBsm in the backscattering region and -18 dBsm at forward scatter can be measured to an accuracy of -l dB. This fully automated indoor system fixes the target and direction of illumination and sweeps the receive antenna to collect data as a direct function of bistatic angle. A broadband, coherent, continuous wave radar is used to obtain both amplitude and phase of the component of the total field aligned with the receive antenna polarization. Target scattered fields are derived from the phasor subtraction of target and background measurement runs. We consider the system design, calibration procedure, and measurement accuracy. Example measurements on metal cubes and spheres are presented to demonstrate the system performance. Swept- angle bistatic scattering, Bistatic radar, Radar-cross-section measurements, Scattering measurements

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE