Quad-Segment Polynomial Trajectory Guidance For Impact-Time Control Of Precision-Munition Strike

Abstract

Accurate calculation of time to go until impact is an essential component in coordinating multiple precision-guided munitions for a simultaneous strike. Conventional means for calculating time to go contain potential errors, due in part to the trajectory curvatures, and may fall short on the accuracy required to achieve a desired impact time, especially if velocity changes rapidly due to atmospheric drag and gravity. A closed-loop guidance law will be presented in which an optimized, piecewise continuous, and smooth family of polynomial trajectories is parameterized in terms of downrange distance and has a closed-form solution of arc length for improved calculation of time to go.

Publication Date

12-1-2016

Publication Title

IEEE Transactions on Aerospace and Electronic Systems

Volume

52

Issue

6

Number of Pages

3008-3023

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TAES.2016.140420

Socpus ID

85013382530 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85013382530

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