汽车英文翻译,大神呢?希望翻译的专业点The problem of active control of noise and vibrations has been a subject of much research inrecent years. For an overview see e.g. (Kuo & Morgan, 1996), (Hansen & Snyder, 1997),(Clark et al., 1998)

汽车英文翻译,大神呢?希望翻译的专业点The problem of active control of noise and vibrations has been a subject of much research inrecent years. For an overview see e.g. (Kuo & Morgan, 1996), (Hansen & Snyder, 1997),(Clark et al., 1998)
汽车英文翻译,大神呢?希望翻译的专业点
The problem of active control of noise and vibrations has been a subject of much research in
recent years. For an overview see e.g. (Kuo & Morgan, 1996), (Hansen & Snyder, 1997),
(Clark et al., 1998), (Elliot, 2001) and the references therein. The main part of the published
literature makes use of adaptive feedforward structures. Adaptive feedback compensation
(Aström & Wittenmark, 1995), in which the feedback law depends explicitly upon the error
sensor output has found little application in the active noise and vibration control field.
Feedforward control provides the ability to handle a great variety of disturbance signals,
from pure tone to a fully random excitation. However, the performance of feedforward
control algorithms can be degraded if disturbances are not measurable in advance (e.g. road
or wind noise) or the transmission path characteristics change rapidly. Contrarily, a
feedback controller can be designed to be less sensitive to system perturbations. Robustness
and performance, however, are conflicting design requirements. To achieve a good
attenuation of the vibrations the cancellation wave has to be very accurate, typically within
±5 degrees in phase and ±0.5 dB in amplitude.

汽车英文翻译,大神呢?希望翻译的专业点The problem of active control of noise and vibrations has been a subject of much research inrecent years. For an overview see e.g. (Kuo & Morgan, 1996), (Hansen & Snyder, 1997),(Clark et al., 1998)
噪音及振动的主动控制问题在近年来已经成为许多项目的研究课题之一.相关概要请参见相关论著,如Kuo&Morgan于1996年,Hansen&Snyder于1997年,还有Clark等人于1998年和Elliot于2001年所述,以及其中的一些参考文献.这些出版著作中均着重阐述了各种自适应式前馈结构的运用经验.自适应反馈补偿(Aström & Wittenmark于1995年提出),其依靠误差传感器输出信号的反馈工作原理已经在主动噪声和振动控制领域局部采用.
前馈控制则可以处理这些成因复杂的干扰信号,从单纯依赖音频转为真正地随机激励.无论如何,前馈控制算法的效果也有可能不尽如人意,如果干扰信号并不能提前侦测（比如有来自路面或下雨的杂音）亦或是传输路径特性的急剧变化.与之相反的是,反馈控制系统的优点正好可以用于降低系统受此问题的影响程度.稳定性及其性能,事实上二者的对立关系让设计人员也颇为纠结：要想达到理想的减振效果,其对冲波形必须相当精准,最理想的结果是相位差不大于正负5度,振幅波动不超过上下0.5dB.