查询词典 noise wave

The influence of background radiation on noise of medium-wave and extremely-long-wave HgCdTe detectors is studied.

研究了不同响应波长的HgCdTe器件在不同背景辐射条件下的噪声变化。

Because the temperature along the pipeline is not a constant, it changes the velocity of the negative-pressure-wave; the Romberg algorithm of numeric integral and the searching for algorithm are emloyed to locate the leakage.Multi-scale decomposition and reconstruction of wavelet transform is applied to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of Δt in location formula, and the location accuracy is improved.

利用小波变换的多分辨分析和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了消噪处理；并利用小波变换技术对信号奇异点快速、准确的识别能力，对经过消噪处理后的负压波信号进行了奇异点捕捉，准确确定了定位公式中上、下游站点采集到的负压波奇异点的时间差△t，从而提高了定位的精度。

The innovative points include of this dissertation is introducing the x-p transformation into transient Rayleigh wave method to improve the extracting effect of fundamental surface wave; utilizing several methods to suppress alias and leverage point effects to raise the signal-to-noise.

本文的主要创新点：在瞬态瑞雷面波资料处理过程中入τ-p正、反变换，提高了面波基波的提取效果；综合使用多种压制假频和端点效应的方法，提高了地震资料的信噪比。

The company has leading products: 1 W, 10W, 40W broadband microwave power amplifiers ,2-18 GHz microwave broadband hybrid integrated amplifier, 6-18GHz microwave broadband hybrid integrated amplifier, broadband low-noise amplifier, millimeter-wave power amplifiers, high-speed high-power microwave switch , Multi-channel switch filters, multi-channel receiver components, microwave, millimeter wave components RT ,1-18 GHz broadband limiter, broadband, such as ultra-wideband microwave antennas, of which 1 W has established mass production of microwave power amplifiers, 40 W microwave power Amplifiers ,2-18 GHz broadband hybrid integrated microwave power amplifiers, and other domestic fill the gaps, for the military plant, provided by the various military microwave devices and micro-electronic devices, for the modernization of national defense have made contributions to the building, the company also created a good Economic and social benefits.

公司的主导产品已有：1W、10W、40W宽带微波功率放大器、2-18GHz微波宽带混合集成放大器、 6-18GHz微波宽带混合集成放大器、宽带低噪声放大器、毫米波功率放大器、高速大功率微波开关、多通道开关滤波器、多通道接收组件、微波、毫米波R-T组件、1-18GHz宽带限幅器、宽带、超宽带微波天线等，其中1W微波功率放大器已定型批量生产，40W微波功率放大器、2-18GHz宽带混合集成微波功率放大器等填补了国内空白，为军工厂、所提供了各种军用微波器件和微电子器件，为国防现代化建设做出了贡献，也为公司创造了良好的经济效益和社会效益。

Disturbing force and moment of shipping produced by random wave are the steady stochastic process, it is a kind of colored noise, but traditional Kalman filter demands that disturb of system is the white noise.

由于随机海浪对船舶的扰动力和扰动力矩是平稳随机过程，它是一种有色噪声，而经典卡尔曼滤波要求系统的干扰是白噪声。

This indicates that LBO is playing the role of polarizer in the laser cavity. According to this conclusion and the comparization among various methods of lowering laser noise, a new method inserting both a quartz whole-wave plate and an etalon to lowering laser noise is introduced.

根据这个结论以及各种降噪方案的比较，提出了自己的一种新方案，即在腔内同时插入一个全波片和一个标准具进行双选频降噪的方案，其中全波片和LBO构成双折射滤波片。

This paper is based on the algorithm of wave field reconstruction from the rate of the displacement spectrum of horizontal radial component of P wave to its vertical component.The observed data are selected from 4 teleseismic records of different depth at the Yichang Station with a good signal-noise ratio.

在远场正演计算的基础上，运用30°～90°的四个不同深源远震记录波形，通过试错法选取台站下方的结构，借助波场反向重建算法，反演确定宜昌台站下方的速度结构。

Available features: Auto-Trim, Crop, Deskew, Flip, Mirror, Resample, Resize, Rotate, Shear, Add Noise, Anti-Alias, Average, Bending, Border Remove, Brightness, Buttonize, Color Resolution, Colored Gray, Contour, Contrast, Cylindrical, Despeckle, Dilate, Dot Remove, DPI Resolution, Edge Detector, Emboss, Erode, Etch, Gamma Correct, Gaussian Blur, Glow, Gradient, Grayscale, Half-Tone, HistoContrast, Hole Punch Remove, Hue, Impressionist, Intensity Detect, Invert, Invert Text, Laplacian, Line Remove, Line Segment, Max Filter, Median, Min Filter, Mosaic, Motion Blur, Multiply, Oilify, Old Photo, Pixelate, Polar, Posterize, Prewitt, Punch, Radial Wave, Ripple, Saturation, Sharpen, Smooth, Sobel, Solarize, Swirl, Unsharp, Wave, and more!

可用的功能：自动修剪，作物， deskew ，倒装，是一面镜子，重新取样，大小，旋转，剪切，添加噪音，抗混叠，平均而言，弯曲，边界消除，亮度， buttonize ，色彩解析度，色灰，轮廓，对比度，圆筒形， despeckle ，扩张，点删除， dpi解析度，边缘检测， emboss ，侵蚀，腐蚀， Gamma修正，高斯模糊，辉光，梯度，灰阶，半色调， histocontrast ，孔冲床删除，色调，印象派，强度检测，反转，反转文本，拉普拉斯，删除线，线段，最高过滤器，中位数，闵过滤器，马赛克，运动模糊，乘， oilify ，旧照片， pixelate ，极地， posterize ， prewitt ，冲床，径向波，涟漪，饱和度，锐化，平滑，索贝尔，曝光，漩涡，锐化，波浪，及其他更多功能！

In order to show the validity of the suggested model of radiated noise sources of ship at shallow wave guide, the radiated noise of a fishery ship was measured.

为了验证浅海波导条件下的船舶辐射噪声源模型，在某浅海海域，测量了一艘渔政船的辐射噪声。

We proposed the time-changed dynamic models of radar signals based on dynamic theory, and can analyze quality and quantity of the deinterleaving pulse train;(2) We proposed the algorithm to computer selfsimilarity exponent and detect successfully the object echo buried in noise according to self-similarity of noise and nonsimilarity of sine wave;(3) We also proposed a nonlinear dynamic filtering detection model.

1根据动力学理论，提出了雷达信号的时变动力学模型，利用这个模型可以对已经分选出来的雷达信号进行定性和定量分析；(2)提出了快速计算自相似性指数的算法，并利用噪声和正弦波分别具有自相似性和不具有自相似性的特点，成功地检测到淹没在噪声中的目标回波；(3)提出了一种非线性动力学滤波检测模型。

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。