多普勒无线电引信自差机非共振特性研究  

Analysis of the Non-Resonance Oscillation of Autodyne in CW Doppler Fuze

作　　者：钱龙[1] 栗苹[1] 李月琴[1] 张庆辉[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《北京理工大学学报》2006年第7期606-609,共4页Transactions of Beijing Institute of Technology

摘　　要：在已建立的晶体管自差机等效电路模型的基础上,运用谐波平衡法,研究了多普勒无线电引信自差收发机受迫振荡的非共振振荡特性,推导出了自差收发机在不同强度信号作用下的幅频特性.在非共振状态下,系统的定常振荡为强迫振荡项和自由振荡项之和.仿真结果表明,弱信号使自由振荡项趋于一个非零的定常振幅,大信号使得自由振荡项衰减为零,而小信号则使某些频率区域中的振荡情况更复杂.Based on an equivalent circuit model of transistor autodyne, the non-resonance oscillation characteristics of the forced oscillation of autodyne are analyzed using the harmonic balance method. With different jamming signals, different frequency amplitude response properties of the autodyne are obtained. Steady-state oscillation occured on the combination of constrained oscillation and free oscilla- tion in the instance of non-resonance oscillation. The results of simulations indicate that the amplitude d the free oscillation goes to a stable nonzero with a weak jamming signal and turns zero with a strong jamming signal, but the oscillation within the bounds of some frequencies is complex with a small jamming signal.

关 键 词：多普勒无线电引信 自差收发机 非共振 谐波平衡法 

分 类 号：TJ434.1[兵器科学与技术—火炮、自动武器与弹药工程]