新型光子学多参数调制UWB信号产生方法

A Novel Approach to Photonic Generation of Multi-parameter Modulated UWB Signals

为了提高光子学产生超宽带(UWB)信号系统的灵活性,提出了一种新型的多参数调制UWB信号产生方法。该方法基于非线性电光强度调制原理在光域中产生符合要求的UWB Doublet信号波形,采用双平行支路的系统结构实现对输出UWB信号的多参数调制。通过理论推导和计算机仿真对所提方法进行分析与验证,研究结果表明:该方法能在光域内产生满足国际标准的Doublet脉冲波形,实现脉冲极性、幅度和时间位置3大参数不同种组合的多参数调制,提高了UWB信号产生方案的灵活性和系统的通信容量。

In order to improve the flexibility of photonic UWB generation system,a novel method to photonically generate multi-parameter modulated UWB signals was proposed in this paper.The proposed method can generate desired UWB Doublet signals based on nonlinear electro-optic intensity modulation.Moreover,the multi-parameter modulation of the generated UWB Doublet signals can be realized by using a dual parallel system structure.This proposed approach was analyzed and verified by theoretical derivation and computer simulations.The results show that the proposed approach can generate the Doublet impulse up to the international standards and realize the combined modulation of the 3 key signal parameters,namely signal polarity,amplitude and time pulse position,which greatly improves the flexibility of the photonic UWB signal generation and can further boost the communication capacity of the system.