Research Progress of Overload Signal Characteristics and Processing Technologies of Penetrating Projectile
The overload signal of penetrating projectile is of vital importance to reflect the physical process of penetration,which further helps to reveal the mechanism of penetration resistance and the structural response of projectile. It is also an important basis for designing the projectile-fuze system and achieving the precise target strikes. The overload signal is divided into four components:rigid body deceleration,structural response of projectile,response of connection structure and interference signals of sensors. The sources and characteristics of the four components are introduced,and the modeling and evaluation methods for the vibration and sensor-related signals of projectile-fuze system are discussed. For analyzing the components of overload signals,the low pass filtering,mechanical filtering,modal decomposition,wavelet transform,and blind source separation methods are discussed respectively. The accuracies,adaptabilities,real-time performances,and applicabilities of the methods above are also compared. The real-time requirements for overload signal processing,the signal reconstruction methods,the form of rigid body deceleration in complex penetration environments and the challenges brought by high-speed penetration scenario are discussed. Based on the current research status of overload signals processing of penetrating projectiles,the existing problems and possible future research directions are summarized.
hard target penetrationoverload signalpenetration overloadpenetration-fuze systemprojectile structural response
万方数据
维普
