hyperbolic navigation system การใช้

The first of these hyperbolic navigation systems was the UK'S LORAN and LORAN-C systems.
It was the first hyperbolic navigation system to be used operationally, entering service with RAF Bomber Command in 1942.
As the accuracy of the fix depends on the crossing angle, and all hyperbolic navigation systems grow increasingly inaccurate with increasing range.
Also, by 1940 the British had started development of a number of night navigation aids, and were already testing the Gee hyperbolic navigation system on combat missions.
Hyperbolic navigation systems can be divided into two main classes : those that calculate the time difference between two radio pulses, and those that compare the phase difference between two continuous signals.