飞机炮击环境分析及模拟方法研究(上)

从飞机炮击环境的特性出发,指出GJB150.20-86窄带随机加宽带随机飞机炮振试验方法的局限性以及应用傅立叶分析方法分析炮击信号的不合理性,提出应用时－频联合分析方法进行炮击信号分析的可行性以及小波（Wavelet)分析技术用于炮击信号中确定性信号和非平稳随机信号分离的应用途径。最后,提出适用实验室炮击环境模拟的脉冲方法（Pulse Method)数学模型。

Research of Airplane Gunfire Environment Analysis and Simulation Method

From the characteristic of airplane gunfire environment, this paper show the limitation of narrowband random on wideband random plane gunfire vibration test method in GJB150.20-86, and the illogicality of applying Fourier Analysis method to analyze gunfire signal. And then this paper points the feasibility of applying time-frequency joint analysis method to analyze gunfire signal and wavelet analysis technique's application route to separate stationary random signal from deterministic signal. In the end, this paper offer Pulse Method mathematical model which apply to simulate gunfire environment in Lab.