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arXiv · 2509.07843

Feedback Linearization-based Guidance Law for Guaranteed Interception

Alexander Dorsey·Ankit Goel
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Abstract

This paper presents an input-output feedback linearization (IOL)-based guidance law to ensure interception in a pursuer-evader engagement scenario. A point-mass dynamic model for both the pursuer and the evader is considered. An IOL guidance law is derived using range and line-of-sight (LOS) rate measurements. It is found that the range-based IOL guidance law exhibits a singularity under certain conditions. To address this issue, a fuzzy logic system is employed to smoothly blend the IOL guidance with the classical proportional guidance law, thereby avoiding the singularity. In contrast, the LOS-based IOL guidance law is free of singularities but suffers from divergence issues due to angle-related complications. To resolve this, a simple correction function is introduced to ensure consistent interception behavior. Results from Monte Carlo simulations indicate that both modifications of the IOL guidance laws cause interception with control limits applied.

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Alexander Dorsey, Ankit Goel. 2025-09-09. Feedback Linearization-based Guidance Law for Guaranteed Interception. https://arxiv.org/abs/2509.07843

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