在舰船水压场中利用自回归模型滤波实时检测信号

Real time detection of signals using autoregressive model filtering in ship hydraulic pressure field

本文主要研究从海洋背景中进行舰船水压信号的实时监测。首先建立海浪水压力场的自回归模型及滤波器,然后通过自回归参数模型系数法进行舰船水压信号的特征提取,最后利用滑动检测法实现信号的实时检测。通过实际采集到的数据对检测法进行验证。实验结果表明,本文算法实现简单,在信噪比较低的情况下,能够起到良好的检测效果。

In this paper, the real-time monitoring of ship hydraulic pressure signal was studied. Firstly, the autoregressive model and the filter of the water pressure field were established. Then, the feature extraction of ship hydraulic pressure signal was obtained by the method of auto regressive parametric model. Finally, the real time detection of the signal was realized by the sliding detection method. The method was verified by the data collected. The experimental results showed that the proposed algorithm was simple and could achieve good detection performance under the condition of low signal to noise ratio.