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.