查询词典 frequency response

The proposed method has fast current response, and can limit the current error and the switching frequency with good current tracking performance.

在降低开关频率条件下，既有较好的电流响应速度，又能有效限制电流误差，改善电流跟踪性能。

Frequency curve should be smooth, no sudden jump point oscillation; response curve of the rapid convergence.

频率曲线应平稳，无突跳振荡点；响应曲线应快速收敛。

Based on rubbing model of a two-disk rotor-stator system with consideration of both rotor and stator dynamics,a numerical integration program is applied to numerical simulation and analysis of the nonlinear dynamics of this system,such as bifurcation,Poincare section map,trajectory of axes,phase trajectory,frequency spectrum diagram and time response.

基于一新型径向-轴向复合碰摩双盘转子-机匣力学模型，利用数值积分和Poincare映射方法，对转子-机匣系统由于径向-轴向碰摩故障导致的非线性动力学行为进行了数值仿真研究，给出了系统响应随转速和偏心量变化的分岔图和一些典型的Poincare截面图、相轨图、轴心轨迹、幅值谱图和时域响应等。

These models are SPICE compatible and can be used to simulate the frequency or transient response.

该模型与SPICE建立的模型兼容，并且能够对模型的频率与瞬时响应进行仿真。仿真结果表明了算法的有效性。

Then, with the help of Hankel integral transform, general solutions to axisymmetric problems are obtained in the frequency field, based on which the dynamic response of the unsaturated soils half-space subjected to a vertical concentrated surface load is investigated.

利用Hankel积分变换方法，对频域内的轴对称问题进行了求解。在此基础上研究了非饱和土半空间体在垂直集中力作用下的动力响应，给出了Lamb问题的积分形式解。

By studying,we could know structural response of building to blasting seismic wave is not only relative to intensity of blasting vibration, but also to seismic frequency and characteristic of buliding and groundsill,so we should treat in different ways in practise because of difference made by blasting seismic wave to different structural types.

最后围绕爆破地震波的三要素通过建立理想的建筑模型对建筑物的结构响应进行了理论分析，通过分析得出，建筑物对爆破地震波的响应除了与震动强度有密切关系外，还与地震波频率、建筑物的尺寸、地基土的特性以及结构的累积损伤等有很大关系，而且对于不同类型的建筑物，其结构响应差异还较大，因此在工程施工中需要分别对待。

John Hildebrand: The hypothesis that we're putting forward is that the shift downward in frequency is a response to the increasing population of the animals.

约翰·希尔德布兰：我们所提出的假说是声音频率下降是对蓝鲸数量增加的响应。

At first, with the low-frequency data measured, three of the LRE fault detection systems for the real-time condition are proposed using the nonlinear identification technology of the BP neural network, the state estimation technology of the dynamic neural network, and the pattern recognition technology of the fuzzy hypersphere neural network. The learning algorithms of the BP and dynamic neural network are researched at the same time. Furthermore, while the engine operation is divided into the start and steady-state processes, the real time ability, the response time, the accuracy, the robustness, the sensitivity and the monitoring parameter optimization are studied. In the test data analyses of the YF-75 engine, the detection system correctly carried out for all normal tests, and in the three abnormal tests the engine faults were accurately forecasted.

首先，基于低频测量数据，采用BP神经网络的非线性辨识技术、动态神经网络的状态估计技术及模糊超球神经网络的模式识别技术，提出了三种发动机故障实时检测系统；同时研究了BP神经网络和动态神经网络的学习算法；另外还把发动机工作分为启动过程和稳态过程，分别讨论了神经网络故障检测系统的实时性、及时性、准确性、鲁棒性、敏感性及参数优化问题；在YF-75发动机试车数据分析中，不仅全部正确地监测了正常试车过程，而且准确地预报了三次异常试车中的发动机故障。

The Interpolation technique in frequency domain is employed to calculate the room impulse response in the given condition.

对给定条件下的房间脉冲响应采用频域插值的方法来生成。

For each impulse response waveform, FFT is applied in order to get their frequency characteristics.

最后对此平均频率特性实施IFFT以获取系统的脉冲响应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐