舰载机理想着舰点垂直运动的预估与补偿

理想着舰点的垂直运动是影响着舰精度和安全的一个主要因素,因此必须加强舰载机对理想着舰点垂直运动的同步跟踪能力.为此,提出对理想着舰点垂直运动的位置和速度信号进行预估和补偿的方法,将垂直运动的位置和速度信号经过预估和补偿后分别引入到纵向自动着舰引导系统和飞控系统的垂向速度通道中,使得舰载机可以准确跟踪理想着舰点的垂直运动,以减小甲板运动对着舰的影响.针对不同海况条件,对设计的补偿器和预估器进行仿真验证,并与其他方法进行比较.结果表明本文提出的理想着舰点垂直运动预估与补偿方法可有效地补偿由甲板运动引起的着舰误差,显著提高了着舰的安全性和精确性.

Prediction and Compensation for Vertical Motion of Ideal Touchdown Point in Carrier Landing

The vertical motion of an ideal touchdown point is a main factor affecting the accuracy and safety of carrier landing. Therefore a carrier aircraft’s ability to synchronously track the vertical motion of the ideal touchdown point is of critical importance. For this, a method of predicting and compensating for the vertical position and speed of the ideal touchdown point is proposed in this paper. The vertical position and speed signals of the ideal touchdown point are first processed by the predictors and compensators and then connected to the longitudinal automatic carrier landing system and vertical speed channel of the flight control system as inputs, which helps the carrier aircraft track the vertical motion of the ideal touchdown point and decreases the influences of deck motion on carrier landing. The designed compensators and predictors are examined and compared with other methods through simulations in different sea states. Simulation results show that the deck motion predictors and compensators designed in this paper can effectively compensate for the landing error caused by deck motion and significantly improve the safety and accuracy of carrier landing.