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For a nonlinear course keeping system for ships, a kind of nonlinear robust PID is presented, which is based on an exact feedback linearization and a closed-loop gain shaping algorithm. The nonlinear PID controller is constituted of a nonlinear items with a robust PID controller.

针对非线性船舶航向保持系统，给出一种基于精确反馈线性化和闭环增益成形算法的非线性鲁棒PID控制器，该非线性PID控制器由非线性函数项和鲁棒PID控制器组成。

Another nonlinear robust PID controller is wholly based on closed-loop gain shaping algorithm, which includes a nonlinear switching component with a timer. The algorithms improve the robustness of the system and simplify the design of controller, the simulation results show that the course-keeping performance is improved well.

另外，还给出一种完全基于闭环增益成形算法的非线性鲁棒PID控制器，其包含了具有定时功能的开关元件，两种非线性PID控制器在提高系统鲁棒性能的基础上，简化了控制器设计，从仿真结果可以看出，航向保持效果良好。

If the feedback resistance, RF, equals 2RIN, where RIN is the input resistance, the closed-loop gain of each channel is –2V/V.

如果反馈电阻RF等于2RIN，其中RIN为输入电阻，各通道的闭环增益为–2V/V。

The gainof the basic amplifier when the feedback network is not present is called the open-loop gain,a,of the amplifier.

基本的放大器的获取当反馈网络不是存在称开放环路的获取， a，放大器。

The floating dock system controlled by the closed loop gain shaping with H(subscript ∞) control theory is studied and simulated.

采用H控制中的闭环增益成形控制算法，对浮船坞控制系统进行了理论探讨和仿真研究。

So a Non-inverting Input Composite Preamplifier is designed,and the effect of the open-loop gain on optimizings the frequency responses of signal and noise is analyzed.

本文设计了一种开环增益可调整的同相输入复合跨阻抗放大器，并分析了开环增益对信号和噪声的影响。

Because the open-loop gain of operational amplifier is very large, equation (6.55) can be simplified to

因为开环增益运算放大器，是非常大的，方程（ 6.55 ），可以简化，以

In this paper a method for design of constant phase shift network, which can be used to improve the dynamical characteristics of feedback systems with variable open-loop gain, has been proposed.

本文讨论用于改善开环增益可能会有较大变化的反馈系统的动态特性的"等相移网络"的设计方法，并采用了优化的计算程序来求出极、零点的最佳位置，从而得到了一个在计算机上实现的最优设计法。

It is concluded theoretically that when the signal pickup microphone is placed on one of these points, a corner in a rectangular room for example, any increment in open-loop gain of the secondary system will multiply the damping of reverberant sound field.

只要把次级系统的信号拾取传声器置于这类特征点上，比如在矩形空间中三面相交的墙角处，则次级系统开环增益的增大，就相当于增大了整个混响声场的阻尼。

In this paper, a closed*.loop gain shaping algorithm for MIMO system is presented. It is applied to a high purity distillation column, good control effect and robust stability are obtained.

给出了MIMO系统的闭环增益成形算法，将之应用于精馏塔的控制中，取得了良好的控制效果和鲁棒稳定性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。