Perimeter Surveillance

Easat has designed and built sensors and antenna systems for purpose-designed perimeter surveillance installations. An example is illustrated below. This involved the design and manufacture, in a very short time period, of a short-range surveillance radar sensor for the security protection of a sensitive naval shore facility.

The sensor is low cost, yet is capable of detecting very small sea surface targets such as submarine periscopes and surface craft such as canoes, inflatable rigid boats, or even some swimmers. The sensor is based on readily available radar transmitter receivers operating in the 9.0 to 10 GHz band, together with a compact high-gain low sidelobe antenna of 1.1 metre aperture. The antenna is equipped with polarisation control to optimise radar detection performance in both clear weather and heavy rain.