基于火箭发动机的脉冲信号检测

Pulse Signal Detection Based on Rocket Engine

摘要:

水下火箭发动机工作时，尾部会产生高强度、宽频带背景噪声。在分析火箭发动机噪声产生机理和物理特性的基础上，主要研究了火箭发动机噪声背景下脉冲信号的检测流程和方法。采用自适应消噪和滤波，减弱背景噪声强度并提高了信噪比，建立了火箭发动机噪声背景下脉冲信号的检测方法，解决了强背景噪声脉冲信号难以检测的问题，为火箭发动机水下应用提供了新的思路。

Abstract:

When the underwater rocket engine works，its tail will produce high-intensity and broadband background noises. Based on the analysis of the producing mechanism and physical characteristics of rocket engine noise，the detection process and method for pulse signals under the noise background of rocket engine are mainly studied. Adaptive denoising and filtering are adopted to reduce the intensity of background noise and improve the signal-to-noise ratio. The detection method of impulse signal under the noise background of rocket engine is established to solve the problem that it is difficult to detect impulse signal with strong background noise，which provides a new idea for underwater application of rocket engine.