sound attenuatin

Discussion on noise attenuation methods in seismic data processing.

地震数据处理中噪声衰减方法的探讨

Coniferous forest and evergreen broad-leaved forest had the best reduction effects and their noise attenuation values were also more 10dB.

针叶树林和常绿阔叶树林的减噪效果最好,噪声衰减值均大于10 dB;植物群落对噪声的减弱效果明显优于空旷地;建群种相同、林下层次多、植物种类丰富的群落对噪声的衰减效果优于林下无植被的群落;以落叶植物为优势种的群落在生长期对噪声的衰减值比落叶期高4~5 dB。

The improved farmer algorithm optimizes the structure of original farmer algorithm,simplifying and improving the validity of noise attenuation.

通过对混有噪声的Henon序列进行仿真实验,仿真结果显示,改进后的Farm er算法能够提高噪声衰减的精度,降低与理想Henon序列的绝对误差。

sound attenuation

消声器（噪声衰减装置）

The Influence of Land Covering on the Traffic Noise Attenuation;

地面覆盖物对交通噪声衰减量的研究

High amplitude noise attenuation based on Gabor transform

基于Gabor变换自适应噪声衰减

Discussion on noise attenuation methods in seismic data processing.

地震数据处理中噪声衰减方法的探讨

Study of Traffic Noise Prediction Model and Traffic Noise Attenuation by Tree Belts;

公路交通噪声预测及绿化带对交通噪声衰减的效果研究

Reduction Methods of Seism Data Random Noise Based on Higher-Order Statistics;

基于高阶统计量的地震数据随机噪声衰减方法

Application of second generation Curvelet transform in random noise decaying of seismic data

第二代Curvelet变换在地震随机噪声衰减中的应用

The Effects Study of Traffic Noise Declining by Green Lands in Harbin City

哈尔滨市区绿地对交通噪声衰减效果研究

Colored noise identification and its decreasing of spring flow attenuation in fissure-conduit media

裂隙-管道介质泉水流量衰减过程中的有色噪声辨识与消减

Analyses the characteristics of transmission, natural attenuation, regeneration and superposition of noise.

分析了空调系统噪声的传递、自然衰减、再生和叠加特性。

Any noise characteristic of the preamp circuit is attenuated along with the signal, unlike circuits where the volume control is before the input.

与一些音量控制置于输入端的电路不同，这个前级放大器的特征噪声能够随同信号一起衰减。

The optimum design of detector arrays for the attenuation of surface waves and of ambient noise is a complex subject.

为衰减面波和外界噪声作检波器组合的最佳设计是一件复杂的事情。

2-D Damped Parametric Model of Radar Target for ATR in the Presence of Colored Gaussian Noise

色高斯噪声条件下自动目标识别的雷达目标二维衰减参数化模型方法

Multi-path Channel Estimation in Strong Impulse Noise Environment

强脉冲噪声环境下的多径衰信道估计

The noise analysis and control measures review in seawater system

海水系统噪声分析及其减振降噪措施综述

Analysis of Reciprocating Pump Vibration and Noise Mechanism and Reduction Measures

往复泵振动和噪声机理分析及减振降噪措施

Easy to be sealed, little dust, low noise, improving environmental pollution.

容易密封，粉尘少，噪声小，减少公害。

The more the room is filled with absorbent the faster the sound decays.

房间的吸收率越高，声音就衰减得越快。