针对反潜直升机海上悬停时高度信号受到的海浪噪声干扰,分别采用能量等分法和海浪功率谱法,基于Matlab/Simulink讨论了建立高精度的海浪快速仿真模型的方法,提升了海浪模型的实用性。在无线电高度表与垂直加速度计组合高度系统基础上设计了Kalman滤波器,实时地对海浪噪声进行滤波,以获取精确的高度信号。对不同海况下直升机遭遇的海浪进行仿真实验,结果表明所设计的高度组合系统及滤波器有效,具有良好的实时性和鲁棒性。 Aiming at the interference of sea noise caused by the altitude signals of anti-submarine helicopters during hovering, the method of establishing fast wave model with high precision is discussed based on Matlab / Simulink, and the method of wave model is improved Sex. The Kalman filter is designed based on the combined height of the radio altimeter and the vertical accelerometer to filter the sea noise in real time to get the accurate altitude signal. The simulation experiments on the waves encountered by helicopters in different sea states show that the designed height combination system and filter are effective and have good real-time and robustness.