Category Archives: Sensors

Radar Detection and The Horizon Distance

While reading some of the posted items about the our Peacock-class Corvette’s radar and gun range, I just came across the problem of detection by Radar because the “Horizon Distance”.

A typical Radar system is limited in terms of detecting objects close to the surface of the earth because of the curvature of the Earth. It is ideal for detecting aircrafts flying at altitude, but for ships, or very low flying aircrafts, its detection range would be limited by the height of the object being observed, and the height of the Radar Transmitter/Receiver (T/R).

A typical formula for Horizon Distance I found in the web (click here) is HD = SQRT(H)*112.88 where:
HD = Horizon Distance in km.
H = Height of the Observer
112.88 = Formula Constant
Continue reading Radar Detection and The Horizon Distance