1. An Instrumentation System Applied To Formation Flight Kiriti Rambhatla Thayalan Selvam Kelvin Ratnayake Viveknanthan Suganthan

2. References 1) I.D Hummel, “The use of aircraft wakes to achieve power reductions in formation flight”, presented at the advisory group of Aerospace Research & Development. 2)D.F Chichka and JL Speyer, “Solar-powered, formation-enhanced aerial vehicle systems for sustained endurance”,in Proc.Amer.Contr.Conf. 3) R.J Ray, B.R. Cobleigh, M.J. Vachon,and C.J St, Flight test techniques used to evaluate performance benefits during formation flight, NASA Dryden research centre. 4)www.nasa.gov 5)www.site.uottawa.ca/~misbah/elg4392/index.html

3. What Is Formation Flight

4. Applications Of Formation Flights

5. Ground Based Systems Previously the information from the formation flight would reach ground based instruments and then to the flights back again. This lead to a number of accidents and failures in formations flights, hence NASA came up with an Instrumentation System called the Formation Flight Instrumentation System (FFIS). FFIS makes use of GPS, Extended Kalman filter and an interface.

6. BLOCK DIAGRAM FFIS

7. Extended KALMAN FILTER The Kalman Filter is a recursive filter which estimates the state of a dynamic system from a series of incomplete and noisy measurements. In this project an extended KALMAN filter is used along with GPS( FFIS) to eliminate the need for ground based systems information flight. We used MATLAB to simulate the results for the filter to estimate position, velocity and attitude of the next aircraft.

8. EXTENDED KALMAN FILTER EQUATIONS

9. Simulation Results

11. SIMULATIONS WITHOUT FILTER

12. SIMULATIONS WITH KALMAN FILTER

13. STATE SPACE EQUATION FOR AIRCRAFT

14. BODY CO ORDINATE FRAME FOR AN AIRCRAFT

15. ANGLES OF OPERATION

16. SIMULINK MODEL OF AIRCRAFT (NON LINEAR SYSTEM)

17. PLOTS

18. THANK YOU Questions