李森

然后从反馈振荡器的李森模型出发，重点分析了科尔皮兹振荡器的相位噪声，通过MATLAB和VC++的混合编程得出QL是C2的单调递增函数。

Then the phase noise of Colpitts oscillator circuit is analysed on the basis of phase noise equation of Leeson model in feedback oscillator and we can draw a conclusion that QL is a monotone increasing function of C 2 by MATLAB and VC + + .

从李森模型出发，以100MHz振荡器为例，详细介绍了一种高频低相噪晶体振荡器电路的设计思想和指导原则。

On the base of Leeson Model the circuit design of a high frequency and low phase noise crystal oscillator was discussed , taking a 100 MHz oscillator as an example .

参照提出反馈振荡器中输出和输入噪声关系的李森模型，设计一高稳定低相位噪声振荡器的实验电路，并在实验中分析电路关键元件对电路整体性能的影响。

According to Leeson Model , which had proposed the relationship of noise between output and input in the feed-back oscillator , an experimental Crystal Oscillator circuit with high stability and low phase noise is designed .