New Estimation and Guidance Algorithms for Use against Maneuvering Targets in Uncertain Environments

This proposal seeks to develop guidance algorithms and estimation schemes to intercept targets when they are boosting or on their ascent trajectory. Effective algorithma to work against such threats need to be robust, efficient and accurate due to the uncertainies in the target burn times and their intent. Furthermore, they could be manuevering. The guidance algorithms to be developed are based on optimality and robustness. These techniques will further be compared with the Lambert Guidance. To improve the effectiveness of the guidance algorithms, new algorithms are based that rae robust to time-delay. A major part of the effort will be to find analytical expressions to develop PIP estimation against a multistage boosting target whose burn times are unknown. The proposed algorithms will be tested in a 6 DOF environment. Performance of different guidance techniques proposed will be tested under various scenarios and compared for their accuracy and performance.