针对现有测试系统采集复现的笔划画面不清晰的问题,根据航空显示信号中笔划信号各分量之间时序关系及频率分布特征,对笔划采集数据进行处理。对其中辉亮信号采用二值处理,对笔划偏转信号进行分段滤波。采用Savitzky-Golay滤波数据处理算法,引入3σ准则对异常点进行剔除,并对平滑窗口宽度采用动态设计。仿真实验结果表明,该方法可以消除大部分噪声的干扰,使测试系统复现出的笔划画面质量大幅改善。 Aiming at the problem of unclear stroke picture in the existing test system, the data of stroke acquisition are processed according to the timing relationship and frequency distribution characteristics of the stroke signals in the aviation display signal. Brilliant signal on which binary processing, the signal on the stroke deflection filter. The Savitzky-Golay filtering data processing algorithm is adopted, the 3σ criterion is introduced to eliminate the abnormal points, and the dynamic window width is designed dynamically. The simulation results show that this method can eliminate most of the noise and greatly improve the quality of stroke picture reproduced by the test system.