查询词典 noise

Through the processing method basing on wavelets, implementing the removing noise about section gauss noise to colure full TV signal, we resolve the theory and practice problems in the processing of weak signal detection.

通过基于小波分析的处理方法，实现对彩色全电视信号一段被高斯白噪声干扰的降噪，解决微弱信号检测过程中遇到的理论和实践问题。

By detailedly deriving the equations of the input impedance, transconductance, voltage gain and noise figure, an inductive degeneration common emitter low noise amplifier which is used in an ultra high frequency receiver chip is designed.

通过详尽推导电感负反馈共发射极低噪声放大器的输入阻抗、跨导、电压增益以及噪声系数的表达式，讨论并设计了一个应用于超高频接收芯片的低噪声放大器。

The above formulas are used in theM standard spectrum and the three-section standard spectrum for evaluating the tread patterns' noise to provide a simple calculating tool and line-up comparison for analyzing the frequency spectrum of tread patterns' noise .

将三者之间的变换关系应用到轮胎花纹噪声评价M标准线和三段标准谱线中，为轮胎花纹噪声的频谱分析提供了简化运算工具和排队比较方法。

The next Day after I came home to my Hutch with him, I began to consider where I should lodge him, and that I might do well for him, and yet be perfectly easy my self; I made a little Tent for him in the vacant Place between my two Fortifications, in the inside of the last, and in the outside of the first; and as there was a Door, or Entrance there into my Cave, I made a formal fram'd Door Case, and a Door to it of Boards, and set it up in the Passage, a little within the Entrance; and causing the Door to open on the inside, I barr'd it up in the Night, taking in my Ladders too; so that Friday could no way come at me in the inside of my innermost Wall, without making so much Noise in getting over, that it must needs waken me; for my first Wall had now a compleat Roof over it of long Poles, covering all my Tent, and leaning up to the side of the Hill, which was again laid cross with smaller Sticks instead of Laths, and then thatch'd over a great Thickness, with the Rice Straw, which was strong like Reeds; and at the Hole or Place which was left to go in or out by the Ladder, I had plac'd a kind of Trap-door, which if it had been attempted on the outside, would not have open'd at all, but would have fallen down, and made a great Noise; and as to Weapons, I took them all to my Side every Night.

应该说，我现在的裁缝手艺已相当不错了。另外，我又给了他一顶兔皮帽子，戴起来挺方便，样子也很时髦。现在，他的这身穿戴也还过得去了。他看到自己和主人几乎穿得一样好，心里十分高兴。说句实话，开始他刚穿上这些衣服时，深感行动不便；不但裤子穿起来感到很别扭，而且，背心的袖筒磨痛了他的肩膀和胳肢窝。后来我把那使他难受的地方略微放宽了一些，再加上对穿衣服也感到慢慢习惯了，他就喜欢上他的衣着了。回到家里第二天，我就考虑怎样安置星期五的问题。我又要让他住得好，又要保证自己绝对安全。为此，我在两道围墙之间的空地上，给他搭了一个小小的帐篷，也就是说，这小帐篷搭在内墙之外，外墙之内。在内墙上本来就有一个入口通进山洞。因此，我在入口处做了个门柜和一扇木板门。门是从里面开的。一到晚上，我就把门从里面闩上，同时把梯子也收了进来。这样，如果星期五想通过内墙来到我身边，就必然会弄出许多声响，也就一定会把我惊醒。

Due to its smaller computus, faster convergence rate and smaller misadjustment, and its performance is not influenced by existing uncorrelated noise, the proposed algorithm can be applied perfectly in the adaptive noise cancellation system and achieves favorable performance in lower SNR situation.

该算法计算量小、易于控制，具有快速的收敛速度和较小的失调，不受已存在的非相关噪声的影响，可很好地应用于自适应对消系统中，且在低信噪比环境中仍能保持良好的性能。

In the algorithm, the conditional linear state equation is first inserted into the measurement equation, which fuses the linear state process noise and the original measurement noise, whereafter the GHF is used to estimate the nonlinear states. Then the estimated means of the nonlinear states are inserted into the linear state equation and the original measurement equation to estimate the linear states by the KF. Moreover, in order to improve the accuracy of the estimates, the estimated variances of the nonlinear states are fed back to modify the estimations of the linear states using the KF.

算法将模型中的条件线性状态方程代入观测方程，并融合线性状态的过程噪声和观测噪声，由GHF获得非线性状态的估计；再将非线性状态的估计均值代入线性状态方程与观测方程，由KF获得线性状态的估计；获得的非线性状态估计方差还用于修正由KF估计的线性状态，以提高精度。

In the Gaussian sum filter-Kalman filter algorithm, the conditional linear state equation is first inserted into the measurement equation, which fuses the linear State process noise and the original measurement noise. And the GSF is applied to the new measurement and nonlinear state equations to estimate the nonlinear states. Then the estimations of the nonlinear states are inserted into the linear state equation and the original measurement equation to estimate the linear states by the KF.

算法将模型中的条件线性状态方程代入观测方程，并融合线性状态的过程噪声和观测噪声，再与非线性状态方程联立，由高斯和滤波器(Gaussian sum filter， GSF)获得非线性状态的估计；然后将估计值代入线性状态方程与观测方程，由卡尔受滤波器(Kalman Filter， KF)获得线性状态的估计。

To compare the image quality of the three sequences in two groups by One-Way ANOVA and T Test. The qualitative assessment standards include clarity, artifacts, signal uniformity, the conspicuity of enhanced vein and the observable grade of intrahepatic venous branchs. The quantitative assessment standards include SNR and CNR of intrahepatic portal vein and hepatic veins. Furthermore, the anatomy and variations of the intrahepatic portal vein and hepatic veins are statistical analysed.

通过方差分析和T检验分别对A、B组三个序列的图像质量进行比较，评定标准包括清晰度、伪影、信号均匀性、静脉强化程度及肝内静脉分支显示级数等定性指标和肝内门静脉、肝静脉的SNR(Signal-Noise Ratio，信噪比)及CNR(Contrast-Noise Ratio，对比度噪声比)等定量指标。

And the effects of length of data N to the approximate entropy of chaotic system isalso analyzed.All these are accomplished by examining several time series produced by a surperposition of white noise and noise-free data.It uses the discrete system logistic map and continuous system Lorenz attractoras the examples.

以Logistic方程描述的离散系统和Lorenz方程描述的连续系统为例，采用白噪声和无噪声信号以不同的信噪比混迭而成数据的方法，分析了相同数据长度N，不同信噪比下，混沌系统近似熵的变化；相同信噪比，不同数据长度对系统近似熵的影响。

The reconstructed images usually suffer from salt and pepper noise when reconstructing with conventional ART, by adding a relaxation factor the convergence speed can be accelerated and the problem of salt and pepper noise can be overcomed.

传统ART算法在重建图像中普遍存在椒盐噪声，通过加入松弛因子，不但加快了算法的收敛速度，而且克服了椒盐噪声。

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。