positive-grid oscillator

By constructing a Lyapunov function, the sufficient conditions for global stability of the positive equilibrium are obtained. ( 2) Coupled oscillator systems with delayed feedback is considered, when angular frequency is a constant.

通过构造李雅普诺夫泛函，给出了模型正平衡点全局稳定性的充分条件。（2）在角频率相同的条件下，对一类时间延迟耦合振荡器模型进行了研究。

It put forward the design methods of oscillator based on the RF transistor which work at the characteristic frequency. It design preamplifier based on the principle of positive feedback. It is possible to set alarm automatically by micro-controller and other chips.

文章根据多普勒效应设计微波探测器，提出了基于射频三极管在特征频率下的应用设计振荡器的方法，设计了基于正反馈原理的前置放大器，利用单片机及其它外围芯片可实现自动拨号报警。