混响

This paper studied Adjustable Reverberation Time deeply bytracing and synthetizing internal and overseas current corelativeinformation.

本文是在厅堂可变混响的基础上，追踪国内外相关资料，对现有可变混响进行深入的研究。

The measuring deviation of reverberation time at low frequency in reverberation room is large.

针对混响室低频混响时间测量的偏差大这一问题，提出对随机噪声信号进行限幅或改用一系列单频信号发生器作稳定激发可显著改善测量结果的偏差。

After that, the important equation for calculating reverberation time is given based on the definition of reverberation time and least squares method. Finally, we use our new method to calculate reverberation time in a rectangular enclosure; we also compare our results with those given by experiment and Sabine's equation. The comparison shows that the new method is more effective and accurate than Sabine's equation in calculating reverberation time of small enclosures.

给出了描述小尺度封闭空间内声场的有限元模型；在该模型的基础上推导了计算小尺度封闭空间内混响时间的方法，并编制了相应的计算机程式；在算例部分，计算了一矩形封闭空间内的混响时间，通过与实验结果进行比较，验证了这一方法的正确性。

This paper introduces a method for reverberation rooms used for measurement of sound power levels of reference sound sources.

本文介绍了混响室法检测标准声源声功率级的方法，并对用混响室法检测标准声源声功率级的测量结果进行了不确定度的评定分析。

Then this paper introduces the principle and requirements of reverberation chamber, and gets the formula from this system.

然后，对声学材料隔声量测量的混响室法的测量原理及测量要求进行了讲述，并推导出了混响室隔声量的计算公式。

This paper introduces a method for reverberation room s used for measurement of sound power levels of reference sound sources.

本文介绍了混响室法检测标准声源声功率级的方法，并对用混响室法检测标准声源声功率级的测量结果进行了不确定度的评定分析。

The predictions are identical with that of foreign underwater acousticexperiments.The third,the scattering theory are applied in prediction of seareverberation and inversion of sea bottom parameter.Shallow-sea monstaticreverberation is predicted by combining shallow-sea normal mode theory withscattering theory.Then with simulated annealing of neural network and scatteringtheory accurate inversion of sea-bottom parameter and surface roughness are given.

第三，把散射理论应用于海洋混响的预报和海底介质参数的反演，首先通过浅海简正波理论和散射理论相结合，对浅海单程混响进行了预报；然后利用神经网络理论中的模拟退火法和散射场理论相结合，准确地反演了海底介质参数和表面粗糙度。

A wavelet domain solution combined with spatial correlation and fuzzy logic method for reverberation suppression and contrast enhancement was proposed.

针对声纳图像在生成和采集过程中产生大量的混响，提出了一种改进的基于小波系数相关性与模糊理论的声纳图像混响抑制与增强算法。

This paper introduces the fundamental principle of the reverberation chamber and mode stirrer, and describes the design of an auto-measurement system with the technique which is used for testing the shielding effectiveness of cable and device in detail.

本文介绍了波模搅拌混响技术的基本原理，并对利用波模搅拌混响技术实现电子器件的电磁屏蔽效果自动检测装置的设计，进行了详细论述。

The modified algorithm estimates the AR model parameters according to the reverberation noise data of the previous blodk, uses the whitener constructed by estimated parameters to filter the reverberation noise data of the current block, and executes the univariate GLRT judgement to the filtered data.

改进算法根据前一段的混响噪声数据估计AR模型参数，利用估计参数构成的白化器对当前段混响噪声数据进行滤波，并对滤波后数据进行单变量的GLRT检测。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。