• The noise factor analyzer's operation principle and the basic noise factor measurement method, Y factor method, are described.

    论述了噪声系数分析仪工作原理噪声系数基本的测量方法——Y因子

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  • In the meanwhile, with using more accurate expression of the avalanche excess noise factor, we give a relation schema between sensitivity and dark current.

    同时采用较为精确过剩噪声系数表达式给出灵敏度暗电流的关系曲线。

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  • Therefore, deeply investigating and analyzing the character of random noise in working area and its relation with working factor have practical implication to better guiding field data acquisition.

    因此深入地调查分析工区内随机噪音特征及其施工因素关系对于更好地指导野外数据采集具有实际意义

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  • After the bandwidth and temperature, the remaining factor in determining the system noise is the effective source resistance.

    讨论带宽温度以后决定系统噪声一个因素就是等效电阻。

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  • While the living conditions become worsen because of the noise and privacy factor, its potential for the commercial used is enhanced.

    由于噪音隐私因素,这里生活环境越来越差,但潜在商业价值逐渐加强。

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  • The degenerative model is that original image was passed by operator or was acted on degenerative factor, and noise overlap-added, then, degenerated image was formed.

    退化模型原始图像经过算子系统经退化因素作用之后噪声叠加,以形成退化后的图像,即实际得到的图像。

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  • The paper USES this technique to eliminate the noises in seismic exploration, and emphasizes analysis of the relationship between the noise conditions and the length of filtering factor.

    本文这项技术用于地震勘探中的噪声压制,重点分析噪声条件滤波因子长度关系

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  • Besides multistage EDFA making the bandwidth reduced and noise increased, the material dispersion of optical fibers is also an important factor to affect WDM systems.

    除了多级光纤放大器(EDFA)使带宽减小噪声增大,光纤材料色散也是WDM系统影响重要因素

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  • The influence of noise on identification precision, the effect factor of the computing precision and the reason of missing estimation some modes were analyzed and discussed.

    从理论试验两个方面分析和研究噪声识别精度影响影响识别精度因素以及部分态成分的模态参数不能够识别的原因

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  • Noise scale factor is introduced and used to describe and process the standard deviation of photoelectrons of photodetector.

    引入噪声比例因子描述处理光电探测器误差

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  • Cooling the sample from room temperature (290k) to liquid nitrogen temperature (77k) decreases the voltage noise by approximately a factor of two.

    样品室温温度(290k)降低液氮的温度(77k),可以使得噪声电压减小大约一半。

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  • The noise index of YKK Series, which are the main export parts to power station (including nuclear power station), is an important competitive factor in international market.

    作为我国电站包括核电站主要出口部件YKK系列电机国际市场上竞争力受到噪声指标影响

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  • This paper discussed the error in the measurement of noise figure—The method of Y factor , The error is caused by mismatch of RF attenuater and IF attenuater and the others in the measurement system.

    本文讨论了常用噪声系数测试方法—Y因子高频中频衰减器本身失配测试系统其它部分的影响所造成测试误差

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  • The noise in vehicles is not only important factor of influencing its comfort index but also one of important index of evaluating its quality.

    汽车噪声不仅影响舒适性指标重要因素而且也是评价质量品质的重要指标之一

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  • Noise is the main factor influencing incipient rotor machine failure detection.

    噪声影响旋转机械早期故障检测主要因素

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  • The decisive factor is that the differentiation is not based on a sample over a discrete time period, but is a physical effect, so that the user sees a dynamic, low-noise acceleration signal.

    决定性因素这种区分没有根据样本离散时间它是物理作用使用户会看到一个充满活力低噪声加速度信号。

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  • Many emphases are put on analyzing Y-factor method which is the most widely-used noise figure measuring method nowadays in practical engineering and study.

    本文介绍了噪声系数的几种测量方法,重点分析目前实际工程研究常用噪声系数测量方法—Y因子法。

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  • High power factor, high efficiency, low noise, is the character that power supply and electronic equipment pursuing.

    功率因数高效率噪音电源装置用电设备普遍追求品质

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  • In modern radar and communication system, phase noise of local oscillator (lo) becomes a vital factor of system performance.

    现代雷达通讯系统中,本相位噪声越来越成为决定系统性能关键因素

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  • Due to its relative low amplitude properties, the bioelectricity signal is easy influenced by surrounding factor, the amplifier with low noise and voltage offset is required.

    由于生物电信号非常微弱,容易受量测环境及电路本身等因素所影响,故要求放大器具有噪声低失调电压性能

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  • Finally, the optimum weighting factor of each trace is determined with the signal amplitudes and noise covariance.

    最后信号振幅噪音方差矩阵来确定优化加权因子并作加权叠加。

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  • Each sensor has its corresponding fuzzy factor and parameters of noise level.

    不同传感器对应不同的模糊因子噪声

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  • The result shows that the rate of pressure rise and the heat release are the main dynamic load factor that affects the combustion noise.

    研究结果表明:气体动力载荷因素压力升高放热影响燃烧噪声重要因素。

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  • The nonuniformity noise in the infrared focal plane array is a major factor which limits the quality of infrared image.

    红外平面阵列均匀性噪声制约红外成像质量主要因素

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  • The method is to find out a fractional factor that makes the fractional differenced result closest to the white noise.

    方法实质寻找分数因子使随机分形信号通过分数差分后的输出信号接近噪声

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  • The method is to find out a fractional factor that makes the fractional differenced result closest to the white noise.

    方法实质寻找分数因子使随机分形信号通过分数差分后的输出信号接近噪声

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