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noise
相关语句
  噪声
    Study on Modularized Analysis and Design for Low-Noise Amplifier Using the Equivalent Noise Model Method
    低噪声放大器模块化分析与设计的等效噪声模型法的研究
短句来源
    Experimental Studies, Analysis and Design for Erbium Doped Fiber Amplifiers with Low Noise Figure, High and Flat Gain
    低噪声、高增益、高平坦度掺铒光纤放大器的分析与实验研究
短句来源
    CMOS Rf Devices Modeling and Low Noise Amplifiers Design
    CMOS射频器件建模及低噪声放大器的设计研究
短句来源
    The Research about the Noise for the Reliability of High Power Semiconductor Laser and Bipolar Transistor
    噪声用于半导体大功率激光器及双极晶体管可靠性研究
短句来源
    Research on the Noise Performance Mearsurement for Microwave BJT&FET Devices
    微波BJT/FET器件噪声特性测量的研究
短句来源
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  噪音
    A602 TYPE LOW NOISE SELECTIVE FREQUENCY AMPLIFIER
    602-A型低噪音选頻放大器
短句来源
    Calculation of Background Noise Spectrum of IR System
    红外系统背景噪音谱的计算
短句来源
    STUDY ON THE NOISE CHARACTER OF A SQUEEZED-PUMP TWO-PHOTON LASER DEVICE
    压缩抽运下双光子激光器噪音性质的研究
短句来源
    It is difficult to reduce the noise signal in the cab signal by normal filter because the frequency of it is similar to themodulate signal.
    由于铁道机车信号中噪音信号频率与调频信号频率较为接近,使用普通滤波器很难在滤除噪音时尽可能少地影响有用信号。
    Designing Simulation of RF Low Noise Amplifier
    RF低噪音放大器的仿真设计方法
短句来源
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  干扰
    CYCLICAL NOISE RESTRICTION BY LOCKING SAMPLING
    用锁相式采样法抑制周期性干扰噪声
短句来源
    Strong Tracking Filtering of Nonlinear Systems with colored Noise
    有色噪声干扰的非线性系统强跟踪滤波
短句来源
    In front-end electronics of PET,in order to restrain noise and improve Signal Noise Ratio of sampled data,a passive second order RC filer is designed.
    为了减小PET前端电子电路中信号的噪声干扰,提高信号的信噪比,本文设计了一个二阶无源RC滤波器。
短句来源
    A demonstration for performance on anti interference of white noise for spread spectrum system again
    再论扩频体制的抗白噪声干扰性能——敬答饶世麟教授
短句来源
    Strong Tracking Filter with Additive Combined Colored Noise
    加性复合有色噪声干扰下的强跟踪滤波器
短句来源
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  “noise”译为未确定词的双语例句
    4GHz Uncooled Parametric Amplifier with Noise Temperature of 50K
    W205型4GHz 50K非冷参放
短句来源
    A practical method to suppress laser speckle noise in coherent imaging system
    抑制相干成象激光散斑背景的一种实用方法
短句来源
    A Design of 12-GHz Low Noise Converter With Planar Circuit Mounted in Waveguide
    12GHz平面立体电路混频器的设计
短句来源
    Calculation and Design of Photodiode with Noise Equivalent Power of 10~(-10)W
    探测功率10~(-10)W的光电器件的计算与设计
短句来源
    The paper discussed the principle and application of DAC1220. DAC1220 is a 20-bit binary multiplying D/ A converter, utilized delta-sigma technology. DAC1220 features a synchronous serial interface, and provides low noise, excellent linear and thermal drift characters.
    DAC1220是采用△-∑转换技术实现的20位D/A转换器,具有噪声低、线性误差小、温漂小等特点,可用串行接口进行3线操作,很适合于灵敏的基于微控制器和DSP的系统。
短句来源
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  noise
Wavelets, generalized white noise and fractional integration: The synthesis of fractional Brownian motion
      
However, unlike the values of f(n)(t0), the values of the chromatic derivatives Kn[f](t0) can be obtained in a noise robust way from sufficiently dense samples of f(t).
      
This receiver simultaneously combats multipleaccess interference (MAI) and non-Gaussian impulsive noise.
      
This paper studies the characteristics of this type of image with complex shape target or noise and presents an improved Snake algorithm.
      
The simulation results indicate that the new Snake model greatly decreases the dependence on the Snake point's initial position and effectively overcomes noise influence.
      
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The effective noise figure of a nondegenerative parametric amplifier, loaded with a noisy second stage, is derived and expressed in terms of the coupling factor and the normalized negative conductance. The optimization of the effective noise figure of the system is then discussed in detail. The gain of the amplifier is also given in terms of the coupling factor and the normalized negative conductance, the relationship between the gain and the effective noise figure is thus found. An upper limit...

The effective noise figure of a nondegenerative parametric amplifier, loaded with a noisy second stage, is derived and expressed in terms of the coupling factor and the normalized negative conductance. The optimization of the effective noise figure of the system is then discussed in detail. The gain of the amplifier is also given in terms of the coupling factor and the normalized negative conductance, the relationship between the gain and the effective noise figure is thus found. An upper limit of the bandwidth of the amplifier is established in view of the optimum noise performance. Finally, a method of synthesis is suggested with numerical illustrations.

本文首先推导了级联着一个噪声很高的次级的参量放大器系统的有效噪声系数,并且用耦合系数和规一化负电导来表示;然后详细地讨论了这个有效噪声系数的最佳化问题。因为放大器的增益也可用耦合系数和规一化负电导来表示,因此在增益和有效噪声间获得一个单值关系式。从最佳噪声运用角度出发建立了放大器通带的上限值。最后,提出一个新的综合方法,并用数字例子作说明。

This report deals with the cause of characteristics deffects of carbon composition film resistors.It is supposed that the main electrical properties of these resistors will be improved by adding the plasticizer of resin to the composition of films to raise the elasticity of films and the uniform distribution of carbon black in films.The report also gives a brief account of the functional mechanism of dibutyl phth-alate as a plasticizer in composition films and describes in detail the effects of the plasticizer...

This report deals with the cause of characteristics deffects of carbon composition film resistors.It is supposed that the main electrical properties of these resistors will be improved by adding the plasticizer of resin to the composition of films to raise the elasticity of films and the uniform distribution of carbon black in films.The report also gives a brief account of the functional mechanism of dibutyl phth-alate as a plasticizer in composition films and describes in detail the effects of the plasticizer on the temperature coefficients, voltage coefficients and noise levels of composition film resistors.The conclusion points out that 10% of dibutyl phthalate added to the composition of films will improve to a certain degree the above electrical properties with no adverse effects on the thermal stability.

本文首先讨论了合成膜电阻性能上缺点的根源,作者认为:在薄膜成分中加入合成树脂的增塑剂,可以提高薄膜的弹性和炭黑颗粒在薄膜中均匀的分布,从而改善电阻器的主要电性能。 本文扼要叙述了苯二甲酸二丁酯为增塑剂时在合成膜中的作用机理,并详细论述了此种材料对合成膜电阻器的温度系数、电压系数、噪音电平等性能的影响。 文中结论指出,在合成膜成分中加入10%量的苯二甲酸二丁酯对上述主要电性能都有一定程度的改进,而对电阻器的热稳定性无不良影响。

This paper describes a new type of gas discharge tube which can be inserted horizontally into a circular waveguide as a standard noise source. It gives good matching (VS,WR = 1.10±0.05) to the waveguide system with a short circuit at one end and a .stable noise out put of 18±0.5 db in the 3 cm wavelength. This result has useful applications to the development of noise tubes in the wavelength region below 8 mm and above 10 cm.

本文描述一种新型的放电管,可以水平地插入圆波导作为标准噪声源。在3厘米波段工作时,当终端短路的情况下对波导系统的匹配是良好的(V.S.W.R=1.10±0.05),并且具有18±0.5db的稳定噪声输出。这结果可以应用在发展8毫米以下及10厘米以上的波导型噪声管的研究工作上。

 
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