查询词典 noise

Based on a new distance, Dave's generalized noise clustering algorithm is extended to non-Euclidean generalized noise clustering model.

利用一种新的距离测度将Dave的广义噪声聚类扩展成非欧氏距离的广义噪声聚类。

However, for the nonperiodic signal buried in high power noise, conventional method are usually not so effective as in the case with lower power noise.

然而，对于淹没于高功率噪声中的非振荡信号，传统的抑制噪声方法是无效的。

The results of empirical research indicates that: Nonrecurring gains have a significant positive impact on the stock price, instead nonrecurring losses don't have a significant impact on the stock price; Nonrecurring gains and losses have an obvious information noise, and nonrecurring losses have greater information noise than nonrecurring gains; Nonrecurring gains and losses of the listed companies when the absolute value of more than 10% of the return of extraordinary items have greater information noises than the companies which has the absolute value of less than 10% of the return of extraordinary items.

研究发现：对于我国经常发生非经常性损益的上市公司，其非经常性收益对股票价格有显著的影响，非经常性损失对股票价格没有显著的影响；非经常性损益具有明显的信息噪音，并且非经常性损失的信息噪音更大，非经常性收益的信息噪音不明显；非经常项目利润率绝对值为10%以上的上市公司的非经常性损益的信息噪音要比非经常项目利润率绝对值为10%以下的信息噪音大。

Based on it , in the circumstances of nonwhite and uncertain noise model , a method of add itional array component is proposed to estimate azimuth angles of sources in unk nown noise environment using MUSIC .

对不少实际环境中的噪声模型是非白和不确定的情况下，提出一种辅助阵元的方法，以确定

The low and normal noise reduction algorithm implemented in the D80 is able to remove excess noise without losing too much detail.

低和正常的降噪算法实施在与D80 ，是能够消除过剩的噪音，没有失去太多细节。

The results obtained from three different methods—the conventional numerical differentiation, the discrete wavelet transform method and the proposed continuous wavelet transform method were compared, it was demonstrated that the results are similar for signals without noise, but the signal-to-noise ratio of the result obtained by the CWT method is improved greatly comparing with the former two methods for noisy signals.

通过数值微分法、离散小波变换法及连续小波变换法对模拟信号的求导结果表明：对于无噪音的信号，三种方法的结果相似，而对于含有噪音的信号，连续小波变换法所得结果的信噪比明显高于前两种方法。

According to the observation experiment at the Jiufeng station where there is smaller environment noise, the conclusions are drawn as follows.In the normal atmosphere, the observed value is about 500×10-5ms-2, which is greater than theoretical value about 30×10-5ms-2, and if in the low vacuum, the observational error about 2.3×10-5ms-2 is generated. The vacuum maintaining system in falling room can not work normally, which will yield 0.1~4.1×10-5ms-2 error to the gravimetric observation. In the case of that the measurement is in the stable geological conditions and the smaller environment noise, the action of vibration isolating spring is not obvious, but it yields greater effects on measurement accuracy.

通过在环境干扰较小的九峰站观测实验，得到如下结论：在正常大气压状态下所观测到的空气阻力影响约500×10-5ms-2，比理论估算值大近30×10-5ms-2，若在低真空状态测量空气阻力也将产生2.3×10-5ms-2观测误差；落体室真空度维持系统工作不正常，空气阻力也将对重力观测造成0.1~4.1×10-5ms-2的观测误差；在地质条件比较稳定，环境震动干扰较小的基墩上测量，隔震弹簧的作用对观测结果影响不明显，但对测量精度影响较大。

Oilcan is a kind of typical rigid target with big backscattering coefficient, which takes on point figure if the resolution of SAR image is not very high; these point targets to be recognized gather together, and form a target region with some distribution area; the center of the region appears as a beeline, and the speckle noise appears scattered, therefore, considering the different grey distributions between point target and speckle noise region and the space geometry distribution, these point targets can be recognized by this algorithm.

由于在高分辨率情况下，合成孔径雷达图像中油罐个体的散射分别体现为由若干高亮度点围成的椭圆，待识别油罐目标的模糊边缘呈不连续的椭圆状，因此从二值化后的SAR图像中识别出拟目标的不连续边缘，判断其是否满足目标边缘特性来识别出最终结果，采用该方法解决了这类高分辨率下椭圆状目标的识别问题。本文运用了基于Gauss核函数支持向量机的SAR图像典型目标识别方法。

For the purpose of revealing the influence of colored noise on the response of oleo damper subject to special random excitation, this paper deals with the one dimension problem caused by colored noise by using the two dimensions Markov equation.

为了研究在特殊随机激励下，色噪声对阻尼器响应的影响，直接从二维马尔可夫型方程出发来处理色噪声驱动的一维问题。

Active noise control is achieved by introducing a canceling "anti-noise"wave of equal amplitude and opposite phase using a secondary source.

主动消声是利用声波之间的相消性干涉原理，使声场局部区域声能相互抵消，从而达到降低噪声的目的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。