@article{YANG2025, 
author = {Xiaofei YANG and Yunjie WU and Weibo XIA and Xiaodong LIU and Haibin DUAN},
title = {Nonsingular field-of-view constrained cooperative guidance with improved time-to-go estimation},
year = {2025},
journal = {Chinese Journal of Aeronautics},
volume = {38},
number = {11},
keywords = {Flight vehicles, Cooperative guidance, Field-of-view constraints, Time-to-go estimation, Predefined-time convergence},
url = {https://www.sciopen.com/article/10.1016/j.cja.2025.103565},
doi = {10.1016/j.cja.2025.103565},
abstract = {This paper proposes a distributed nonsingular cooperative guidance law for multiple flight vehicles with Field-of-View (FOV) constraints. First, a novel time-to-go estimation is developed based on a FOV-constrained Proportional Navigation Guidance (FPNG) law. Then, the FPNG law is augmented with a cooperative guidance term to achieve consensus of time-to-go with predefined-time convergence prior to the impact time. A continuous auxiliary function is introduced in the bias term to avoid the singularity of guidance command. Moreover, the proposed guidance law is extended to the three-dimensional guidance scenarios and the moving target with the help of a predicted interception point. Finally, several numerical simulations are conducted, and the results verify the effectiveness, robustness, and advantages of the proposed cooperative guidance law.}
}