Ballistic Coefficient in the Formulations on Air Drag

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Focusing on the ballistic target path during re-entry, this book revisits calculations of altitude, velocity, and inverse ballistic coefficient using advanced filtering techniques. It highlights the Extended Kalman Filter and introduces a particle filter, emphasizing its accuracy and computational efficiency in state estimation. The study uniquely combines a roughening particle filter to analyze the trajectory of a falling body affected by air drag, addressing both known and unknown beta coefficients. This innovative approach is largely unrecognized in the signal processing and target path communities.