基于锁相环的Chirp超宽带信号源的设计与实现

在传统的模拟法产生Chirp超宽带信号的基础上,提出了一种基于锁相环（PLL）法的Chirp超宽带信号源设计方案。与传统的模拟方法相比,该方法产生的Chirp超宽带信号载频稳定性高,能够达到参考信号的频率稳定度。从理论上分析了该方法的可行性,并用相应的硬件电路实现了基于PLL的Chirp超宽带信号源。实验结果表明,该方法设计出的Chirp超宽带信号源具有易实现,稳定度高,灵活性和实用性强等优点。

Design and Implementation of Ultra-wideband Chirp Signal Source Based on PLL

On the basis of generation of Chirp-UWB signal with traditional simulation method,the paper proposes a method of Chirp-UWB signal design based on Phase-Locked Loop(PLL).Compared with traditional simulation method,this method can produce Chirp-UWB signal which have high carrier-frequency,and can reach the frequency stability of reference signal.The paper analyzes the feasibility of this method,and achieves Chirp-UWB signal source based on PLL using corresponding hardware circuit.The results show that the Chi...