| Title |
A Study on the Transient Response Improvement of a Missile Attitude Controller Using Feedforward-Based Zero Placement |
| DOI |
https://doi.org/10.5370/KIEE.2026.75.8.1943 |
| Keywords |
Feedforward Control; Attitude Control; Zero Placement; Proportional-Integral Controller; Autopilot |
| Abstract |
This paper proposes a proportional-integral (PI) control scheme utilizing a feedforward gain for zero adjustment in the pitch-axis attitude control of wing-controlled missiles. Conventional PI controllers suffer from excessive overshoot, while 3-loop autopilots exhibit slow tracking performance. To resolve this issue, an independent feedforward gain is introduced to shift the closed-loop zero. Mathematical analysis proves this decouples the transient response from relative stability without altering the open-loop characteristic equation. Numerical simulations demonstrate that the proposed method effectively suppresses overshoot and minimizes the ITAE index while perfectly preserving original stability margins, offering a robust autopilot design for highly maneuverable aerospace vehicles. |