RADAR

GPS Standard presents Radar, the new microwave single-head barrier system for security and perimeter protection.

RADAR is a perimeter protection system realized with microwave volumetric sensors based on CHIRP RADAR effect with high performances.

By using the electromagnetic waves provided along the protected perimeter it create a invisible barrier. Respect to the standard intrusion detection system based on the Doppler effect, with the intrinsic limit to detect only the speed of the intruder, Radar, as its name, is a real RADAR able to detect any kind of crossing of its sensitivity area and indicate it can also indicate exactly the crossing point with a 1 meter of accuracy in any weather or light condition. The barrier is very narrow with a width of the beam around 6-7 meter on the horizontal plane and 15 meters on the vertical. The shape and size of the detection field, make it particularly suitable for protecting both areas completely free from obstacles and irregular shaped areas, even in the presence of fixed obstacles. It offers a modern and elegant style and it is able to be perfectly integrate to the surrounding environment, as a light fixture: this is particularly suitable for public and private contexts need to preserve certain aesthetic but with a special need for physical barriers rather than invisible protection systems.

The Radar electronics is realized with a DSP microprocessor, with exceptional processing power and signal analysis, thanks to these characteristics the capability of Radar to distinguish a real intrusion from the environmental noise become foolproof, offering an extraordinary detection capability, accompanied by an equally great capacity for rejection of false alarms. To assure a zero false alarm rate the Radar uses an algorithm to eliminate the residual noise. This is called multiple detection and adopts two windowing procedures, one in the position variable and one in the time variable. The user can modify the dimension of both windows and the minimum number of detections. The system can detect with a probability greater than 99% 40 kg human intruders that crossing the protected area with any movement and with a speed between 0,02 and 18m/sec. The Radar sensitivity can be adjusted via the management software able to establish personalized detection setting. It is possible to regulate the Radar sensitivity to detect very small object crossing the sensitivity area with the same 99% of probability of detection, by increasing a little bit the false alarms ratio. It is possible to create a radar sensors network to meet all installation requirements. With the pinpoint detection, Radar can be integrated with TVCC system so that PTZ camera can be exactly oriented on the right intrusion point.

FUNCTIONING

Radar

Radar operates in the 24GHz frequency band and creates an insurmountable barrier a few meters wide and 120 m long. Any crossing in the sensitivity area will be detected from the Radar. The sensitivity area is realized with the radar wave generated from the sensor; the reflected wave from the body crossing the protected area are detected from the antenna on the same sensor and the DSP microprocessor, by analyse this signal, is able to determinate the intrusion and the exact crossing point. The Radar has a learning scenario feature, based on this function Radar does not generate false alarm with the boundary condition variables.