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CEAS EuroGNC 2026

Trajectory Shaping Guidance for Field-of-View Constrained Impact Angle Control
Kun Wang Assistant Professor, Universidad Carlos III de Madrid, Department of Aerospace Engineering, 28911 Leganés, Spain.
Abstract:
In this paper we propose a trajectory shaping guidance law for directing a pursuer toward a stationary target with a prescribed impact angle, while satisfying a field-of-view (FOV) constraint. A saturated parameterization of the look angle based on the hyperbolic tangent function is employed, inherently enforcing the FOV constraint throughout the engagement. As a result, the guidance problem reduces to solving a univariate nonlinear equation for the guidance gain. Some properties of this smooth nonlinear equation are analyzed, enabling efficient and reliable solution via a bisection method with a first-order approximate initializer. Numerical simulations demonstrate the effectiveness of the proposed guidance law in achieving the desired impact angle while satisfying the FOV constraint.
Keywords: Nonlinear impact angle control; Field-of-view constraint; Trajectory shaping guidance; Hyperbolic tangent function
 View PDF CEAS-GNC-2026-027 doi: 10.82124/CEAS-GNC-2026-027


Kun Wang: Trajectory Shaping Guidance for Field-of-View Constrained Impact Angle Control. Proceedings of the 2026 CEAS EuroGNC conference. Madrid, Spain. May 2026. doi: 10.82124/CEAS-GNC-2026-027.
BibTeX entry (UTF-8):

@Incollection{CEAS-GNC-2026-027,
    author = {Wang, Kun},
    title = {Trajectory Shaping Guidance for Field-of-View Constrained Impact Angle Control},
    booktitle = {Proceedings of the 2026 {CEAS EuroGNC} conference},
    address = {Madrid, Spain},
    month = may,
    year = {2026},
    doi = {10.82124/CEAS-GNC-2026-027}
}