Abstract:

Airborne Equipment has transformed from working for a single ground station to working for multi ground stations.If the slant-range P from 3 ground stations are measured,positioning and navigation can be achieved by the P-P-P positioning method.This multi ground stations scanning mechanism will be the development trend of DME.It is shown that this system can realize multi chain work and its performance is reliable.

Key words: distance measuring;several chain work;position