1. Integrated Estimation Guidance and Control for Engaging Ballistic Target
P. N. Dwivedi, S.N.Tiwari,
Dr. A. Bhattacharya,
Scientist, DRDO, Hyderabad-,INDIA
Dr. Radhakant Padhi
Asst. Professor, IISC, Banglore, INDIA

2. Outline OBJECTIVE OF IEGC
FORMULATION OF INTEGRATED ESTIMATION GUIDANCE AND CONTROL
RESULTS
CONCLUSION

3. OBJECTIVE OF IEGC

4. OBJECTIVE OF IEGC
In this paper a novel scheme is designed to integrate Estimation, Guidance and Outer loop of control to enhance performance of an interceptor.
This scheme is here after refereed as Integrated Estimation Guidance Control (IEGC) scheme
It uses the guidance parameters like zero effort miss(ZEM), relative velocity (∆V ), ballistic coefficient (β) and time-to-go
(Tgo) in the estimator state model and utilizes the output vector of estimator as body rate command.
The benefit of this scheme is that Estimation, Guidance and Control work in unison and yields optimal result

5. OBJECTIVE OF IEGC

6. FORMULATION OF INTEGRATED ESTIMATION GUIDANCE AND CONTROL
State Equation
Measurement Equation
Output Equation

7. States Equation

8. States Equation

9. Measurement Equation

10. OUTPUT EQUATION

11. Nonlinear Controller

12. RESULTS

21. Monte Carlo result

22. Result with various Engagement

23. Result with Perturbed cases

24. CONCLUSION
In this paper, a new Integrated Estimation, Guidance and Control algorithm is introduced for the interception of ballistic targets.
The design implicitly uses the time-to-go as well as guidance parameter like zero effort miss in the estimation process to reduce the consequences of estimation errors and delay on guidance performance.
Using the new IEGC formulation in various interception scenario demonstrated not only a substantial improvement compared with earlier result, but this scheme also possesses a potential to satisfy a hit-to-kill requirement.

25. Thanks for the Attention….!!
Questions ??