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词汇 Step response
分类 英语词汇 英语翻译词典
释义

Step response

原声例句
BBC 听力 2019年9月合集

Indonesia is stepping up its response to thousands of forest fires that are descending thick smoke across the region.

印度尼西亚正在加强对数千起森林大火的应对措施，该地区应被浓烟笼罩。

BBC 听力 2013年6月合集

He said all sides had pledged to step up their humanitarian response and maximize the diplomatic pressure through a negotiated solution.

他说各方都承诺采取人道主义措施，通过协商途径施加最大的外交压力。

中文百科

阶跃响应

典型二阶系统的阶跃响应，包括有过冲（overshoot）、振铃（ringing），在安定时间（settling time）后回到稳定值。
一阶RC电路的阶跃响应，没有过冲及振铃，在三倍时间常数时输出到达输入的95%
图1：理想的负反馈模型；开环增益为 AOL，反馈系数为 β。
图2：双极点反馈放大器的共轭极点位置；Re(s) = 实轴，Im(s) = 虚轴。

阶跃响应是指系统在其输入为单位阶跃函数时，其输出的变化。在电子工程或控制领域中，阶跃响应是指系统的输入在很短时间由0变成1时，其输出的时域特性。此概念可以延伸到使用抽象数学概念的动力系统，以演化参数表示其特性。

分析系统的阶跃响应有助于了解系统的特性，因为当输入在长时间稳态后，有快速而大幅度的变化，可以看出系统各个部份的特性。而且也可以知道系统的稳定性。

英语百科

Step response 阶跃响应

A typical step response for a second order system, illustrating overshoot, followed by ringing, all subsiding within a settling time.
Figure 1: Ideal negative feedback model; open loop gain is AOL and feedback factor is β.
Figure 2: Conjugate pole locations for a two-pole feedback amplifier; Re(s) = real axis and Im(s) = imaginary axis.
Figure 3: Step-response of a linear two-pole feedback amplifier; time is in units of 1/ρ, that is, in terms of the time constants of AOL; curves are plotted for three values of mu = μ, which is controlled by β.

The step response of a system in a given initial state consists of the time evolution of its outputs when its control inputs are Heaviside step functions. In electronic engineering and control theory, step response is the time behaviour of the outputs of a general system when its inputs change from zero to one in a very short time. The concept can be extended to the abstract mathematical notion of a dynamical system using an evolution parameter.
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