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Holography measurements (see for example Bennet et al., 1976 and Scott and Ryle, 1977) have recently been made in which it was possible to use a single receiver and no correlator. The object was to measure the deformation with changing elevation angle of the 46m radio telescope at the Algonquin Radio Observatory, Lake Traverse, Ontario. To allow measurements over a wide range of elevation angle, the emission from natural water-line (22.235 GHz) masers was chosen as a source of signal.
A monostatic radar measurement system at the U.S. Navy Pacific Missile Test Center (PACMISTESTCEN) located at Pt. Mugu, California was utilized to obtain incidence angle performance of radar absorbing structure (RAS) panels. The traditional methods of obtaining reflectivity data for absorptive materials over a range of incidence angles is a technique known as the NRL arch. Developed over 30 years ago by the U.S. Naval Research Laboratory, the technique utilizes moveable bistatic antennas on an arch equidistant from the test material panel in order to obtain incidence angle data.
This paper describes the development and evaluation of a general purpose ground-reflection antenna test range operated by the Council for Scientific and Industrial Research (CSIR). The range is 500 m long and the design is such to allow operation in the ground-reflection mode at L, S, and X bands. The physical configuration of the range is presented to illustrate some of the practical problems experienced in implementing the range design. An experimental evaluation programme was conducted to determine the state of the incident field over the test aperture. Some of these results are presented to show the performance achieved with the range design.