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本文实现了一种利用有源Q倍增谐振器稳定振荡器的自动频率控制系统。分析了该锁频环路的静态响应和动态响应,给出了环路传递函数和噪声模型。理论和实验结果都证明该系统可以明显地改善信号源的短期频率稳定度。
In this paper, we implement an automatic frequency control system that uses an active Q-multiplying resonator to stabilize the oscillator. The static response and dynamic response of the frequency-locked loop are analyzed, and the loop transfer function and noise model are given. Both theoretical and experimental results show that the system can significantly improve the short-term frequency stability of the signal source.