dimensional sound

Based on H ∞ control theory, the feedforward Active Noise Control ( ANC) model of one dimensional sound field in a duct is presented. The design problem of feedforward controller is transformed into the standard problem of H ∞ control.

本文运用H∞控制理论建立管道内一维声场的前馈式噪声主动控制模型，将前馈控制器设计问题转化为标准的H∞控制问题。

互联网摘选

Boundary element analysis for two dimensional sound fied

二维声场的边界元分析

互联网摘选

In this paper, the two dimensional sound field is analysised by boundary element method and numerical formulars are brought out after three different procedures are compared.

本文将边界元法应用于二维声场分析，给出了以第二类汉克尔函数为基本解的数值计算公式，比较了处理奇异积分的三种不同方法。

互联网摘选

There are two energies that you can work with entering the null: sound and light, because your third-dimensional body is a molecular structure also composed of light.

进入零地域那儿是两种你能运作的能源：声音和光，因为你的第三度空间的身体也是由光组成的分子的结构。

互联网摘选

Two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound.

双扩音器支持两个或多个扬声器放出三维效果的音响。

互联网摘选

The resulted sound casting shown that the foundry processes were successful by which dimensional accuracy and sound internal quality can be ensured.

实践证明，这种铸造方法能保证外部形状和内部品质；

互联网摘选

At last, the cases of three dimensional surrounding sound systems with cube array and triangular pyramid array models by using these formulas are illustrated for example in this paper.

文中导出了正方排列和正三角梭锥（正四面体）排列两种型式的三维（立体）声系统作为这组公式应用之例。

互联网摘选

Then for the benefit of the left/ right target bearing resolution technique, we combine the pressure-velocity processing with the information provided by the multi-dimensional combined vector hydrophone which is composed of sound pressure hydrophones and particle velocity sensors in different ways.

结合左右舷目标分辨技术，本文还对由声压与振速传感器，以不同方式组合而成的多维矢量水听器及矢量阵进行了联合信息处理研究。包括声压、振速信息预处理；

互联网摘选

Calculation of three dimensional steady sound radiation of vibration objects with spline boundary element method

用样条边界元计算振动体的三维稳态声辐射

互联网摘选

A mathematical analysis of three dimensional surrounding sound field

三维（立体）声场的数学分析

互联网摘选

The reflection and refraction of a large amplitude plane sound wave(ⅱ) two dimensional case

大振幅平面声波的反射和折射（Ⅱ）&二维情况

互联网摘选

The aural aspect will move into a new realm of three dimensional sound.

听觉方面会进入一新的三维声音领域.

网络文摘精选