Training & Analysis System


What are RCS and ISAR?

Basically, RCS (Radar Cross Section) is a graphic representation, or characteristic pattern, depicting the density of the reflected energy from the surfaces of a scanned target.

Sometimes referred to as the target signature, see the polar diagram below.

RCS pattern of a scale model of a 777 Boeing aircraft obtained using the RCS and ISAR Measurement Training System.

ISAR is Inverted Synthetic Aperture Radar, and unlike conventional radar, the target of interest is rotated, and the radar antenna is stationary, pointing in the direction of the target.

The image below shows the equivalent ISAR image of the above polar diagram.

In the ISAR imagery mode, the RCS and ISAR Measurement Training System can produce images that show the shape of a target (view of a 777-Boeing aircraft shown).

RCS/ISAR Laboratory Scale Model

The Model 8095-50 Radar Cross Section (RCS) and Inverse Synthetic Aperture Radar (ISAR) Measurement System is a sophisticated pulse-mode RCS training and measurement system that has been specifically designed for operation at close range. The Model 8095-50 is a low-power modular system that operates safely in classroom or lab environments.

The system can produce radar cross section (RCS) patterns of targets of up to 75cm length when using its 5ns pulse-width. The system can also generate high resolution ISAR images of much larger targets when used at its smallest pulse width. It operates over a frequency range of 8 to10 GHz.

In ISAR mode, range and cross-range resolution are 12cm for a maximum target length of 2.44m.

Cross-range resolution can be improved with targets of reduced lengths.

Because the system is based on pulse operation, it does not need to be operated in an anechoic chamber, or in an outdoor range. Background clutter is rejected by time-gating and by additional background subtraction during the measurement process.

The system uses a low-RCS target support to achieve precise RCS measurements, and a high-quality PC pre-loaded with the RCS processing software and the necessary I/O boards.

RCS and ISAR Measurement Training System