International Journal of Scientific Research and Engineering Development

This study enhances the stability of the linearized F-16 Fighting Falcon aircraft model using a Linear Quadratic Regulator (LQR) controller optimized by Sequential Quadratic Programming (SQP) techniques. The LQR control technique minimizes a quadratic cost function whose weights are determined by selecting suitable Q and R matrix values. SQP employs a gradient-based optimization algorithm to efficiently compute the optimal feedback gain matrix K. This approach effectively stabilizes both the lateral and longitudinal flight dynamics of the aircraft. Simulation results obtained using MATLAB/Simulink demonstrate the efficacy of the proposed control strategy in ensuring aircraft stability, with a final optimal objective function value of 0.555

Deena Albiya J,"Stability Augmentation of Combat Aircraft Using LQR Controller" International Journal of Scientific Research and Engineering Development, V9(2): Page(2159-2161) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.