引信非线性宇称时间对称无线装定系统信息双向传输方法

A Dual-directional Information Transmission Method for Fuze Wireless Setting System Based on Nonlinear Parity-time-symmetry

非线性宇称时间对称无线电能传输原理应用于引信无线装定领域,可提高装定系统灵活性和适应范围,但需解决收发端间信息双向传输问题。基于互感耦合理论建立装定系统微分方程,求解出收发端回路电压和电流瞬态响应特性与各传输参数间的理论关系。提出一种非归零调幅的能量与信息同步传输方法,能量不间断传输的同时可有效缩短回路起振、停振过程;信息反向传输采用接收端瞬间失谐诱导发送端谐振频率跳跃实现,失谐时间短,对能量传输负面影响小。基于该理论制作的原理样机,正向信息传输速率20 kbit/s,反向传输速率12.8 kbit/s,实验结果验证了所建模型的正确性和信息双向传输方法的可行性。

The principle of nonlinear parity-time-symmetric wireless power transfer can be used to improve the flexibility and adaptability of fuze wireless setting system,but the problem of dual-directional information transmission between transmitter and receiver should be solved.The differential equations of the setting system are established to obtain the theoretical relationship between the transient response characteristics of voltage and current and the transmission parameters based on the mutual inductance coupling theory.A power and information synchronous transmission method of non-return-to-zero amplitude modulation is proposed,which can not only transmit power continuously,but also effectively shorten the starting and stopping vibration in the loop.The reverse transmission of information is realized by inducing the resonant frequency jump at the transmitter through the instantaneous detuning at the receiver,which has short detuning time and less negative impact on the power transmission.Finally,a principle prototype was designed based on the proposed theory.The forward information transmission rate is 20 kbit/s,and the reverse transmission rate is 12.8 kbit/s.The experimental results verify the correctness of the proposed model and the feasibility of the dual-directional information transmission method.