A proposed model of aircraft direction finding and integrated architecture of theta-theta-DRDF

The aim of this research is to assess feasibility of technology demonstration in developing digital resolution direction finding integrating with theta-theta position fixing method. The proposal is to build an integrated architecture which will simultaneously provide both position and direction of an aircraft in even most adverse situations. Theta-theta is one of the methods of positioning an aircraft in flight. Without the help of ´range´ information this method uses only the angles generated from two different VOR transmitters to aircraft; it is possible to find the exact location of the aircraft whereas in proposed digital radio direction finding (DRDF), it is possible to find out aircrafts´ direction with respect to runway by simulating the codes containing ´bearing´ information generated from VOR transmitters. This integrated architecture will reduce the complexity and cost associated with aviation industry.