魔毯着舰飞控系统依赖稳定准确的气流角信号，然而气流角传感器工作环境恶劣，精度较低且容易损坏。此时可利用其他传感器信号对所需气流角信号进行重构，然而，现有气流角重构算法仅可对惯性气流角进行构造，且多数算法忽略了惯性传感器的漂移误差。魔毯着舰过程中舰载机处于低速大迎角状态，舰尾流扰动会导致惯性迎角估计结果与气流迎角存在较大偏差，不利于控制系统的增稳与航迹修正，针对这一问题，提出了一种传感器失效下的魔毯着舰气流角重构算法，该算法无需气流角传感器即可对舰尾流以及气流迎角与侧滑角进行估计，同时考虑了惯性传感器漂移误差。将气流角重构算法加入所设计的魔毯着舰控制系统回路之中，令重构气流角信号参与着舰控制律解算进行数字与半物理仿真验证，结果表明：算法可以对舰尾流以及惯性传感器漂移误差进行估计，得到的重构气流角信号可以反映真实气流角信息，且光滑稳定，不随时间发散，重构气流角信号可以参与魔毯着舰控制律解算，使舰载机保持稳定的气流角，快速对航迹进行准确修正。
The MAGIC CARPET carrier landing control system relies on stable and accurate flow angle signals. However, the flow angle sensors operate in harsh environments, resulting in low accuracy and susceptibility to damage. In such cases, other sensor signals can be used to reconstruct the required flow angle signal. However, existing flow angle reconstruction algorithms can only construct the inertial flow angle, and most algorithms overlook the drift errors of inertial sensors. During the Magic Carpet carrier landing process, the carrier-based aircraft operates at low speeds and high angles of attack, and disturbances from the ship's wake flow can cause significant deviations between the estimated inertial angle of attack and the true flow angle, hindering the control system's stability and trajectory cor-rection. To address this issue, a Magic Carpet carrier landing flow angle reconstruction algorithm is proposed for use in the event of sensor failure. This algorithm estimates the ship's wake flow, the angle of attack, and the sideslip angle without the need for a flow angle sensor, while also considering inertial sensor drift errors. The flow angle reconstruction algorithm is integrated into the designed Magic Carpet carrier landing control system loop, and the reconstructed flow angle signal is used in the landing control law calculation for digital and hardware-in-the-loop simulation verification. The results demonstrate that the algorithm can estimate the ship's wake flow and inertial sensor drift errors, producing a reconstructed flow angle signal that accurately reflects the true flow angle infor-mation. The signal is smooth and stable, without diverging over time, and can be used in the Magic Carpet carrier landing control law calculation to maintain a stable flow angle, enabling rapid and precise trajectory correction for the carrier-based aircraft.
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