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- thermal noise measurement 热噪声测量
- There must be a threshold of thermal noise. 必有一个热噪声的门限值。
- The modified readout noise measurement is based on the standard deviation of a selected square in the overscan image. 在此基础上,提出了改进的噪声和CTE的测试和归算方法。也就是,读出噪声的测量以过扫描区的方差为基础来进行。
- As the range increases thermal noise tends to take over as the major source of inaccuracy. 当射程增大时，热噪声将成为一个主要的误差源。
- This charge movement results in noise, which is often called Johnson or thermal noise. 这种电荷的运动产生了噪声，通常称为约翰逊噪声或热噪声。
- The ambient noise measurement for substations in the city plays an important role in controlling and preventing ambient noise pollution. 城市中变电站环境噪声测量对控制和防治环境噪声污染起着重要作用。
- Thermal noise counting rate of the EMI 9635 QB type photomeltipliers reduces to 1/4-1/3 of the rate at room temperature. EMI9635QB型光电倍增管的热噪声计数率下降到室温时的1/4－1/3。
- Finally, we applied this modified cascode amplifier to the thermal noise canceling structure to achieve low noise figure and impedance matching. 最后应用这个宽频放大器到热杂讯消除技术架构来设计达到低杂讯与阻抗匹配。
- The effect of thermal noise, 1/f noise and power substrate noise on the timing jitter and phase noise in VCO is explored. 对VCO中的热噪声、1/f噪声、电源衬底噪声等对输出的影响以及对各种噪声的抑制方法作了详细阐述。
- The proportional navigation (PN) guidance error caused by angular noise (thermal noise) arid glint effect in radar seeker receiver is studied. 摘要研究了雷达导引头接收机中的角噪声（热噪声）以及目标闪烁对比例导引制导精度的影响。
- A 8mm waveband FM and AM noise measuring equipment is introduced in this paper. 介绍了8mm 调频调幅噪声测试设备的原理和设计;给出了完整的测试数据和误差分析.
- Secondly, research development of noise control is analyzed and theory research of noise radiation, noise measurement and noise resource diagnosis, CAE, research of numerical value and visual analysis, noise active control are described in this paper. 接着，分析噪声控制工程的研究进展，提出噪声辐射理论研究，噪声测试与声源诊断，CAE、数值化与可视化研究，噪声的主动控制技术。
- The laser linewidth is mainly contributed by the thermal noise, the vaecum fluctuation, the spontaneous emissions between the laser levels and the spontaneous Raman scattering. 激光线宽主要来源于热噪声、真空涨落、激光能级的自发辐射以及自发Raman散射。
- The correspondence of the two different kinds of multi-point noise measurement methods with the airworthiness regulation FAR36 part which is admitted internationally is analysed and studied here. 对噪声测量系统 中的关键问题-噪声前置放大电路，文中给出了具体的电路，已通过 计量检测和实际考核，并提出了改进的优化电路。
- The CDS readout circuit can inhibit thermal noise as well as flicker noise of the microbolometer effectively, and the thermal noise dominates the output noise voltage. CDS读出电路能有效地抑制微测热辐射计的热噪声和闪烁噪声，并且输出噪声电压中热噪声占主要部分。
- A minitype wireless noise measure system is designed to act as an automonitor, which has been proved to be a practical device. 试验结果表明，该系统可以有效获得飞机的噪声数据，测试结果与仿真结果比较吻合。
- Considering the effects of MAI, avalanche potodiode (APD) noise, and thermal noise, the performance of this proposed OCDMA communication systems with MPC/OOC is analyzed in detail. 考虑MAI、背景光(APD)噪声、热噪声和接收机噪声，详细分析了采用该PIC技术的OCDMA通信系统的性能。
- This method determines the most effective channels and frequencies to test so the number of phase noise measurements is reduced. 此测试方法能决定出最有效的频道及频率进行测试，以减少相位杂讯的测试次数。
- A second problem is thermal noise, especially that caused by the laser beam itself: the laser spots hit the center of the mirrors, heating them unevenly and thereby deforming them. 干涉仪的第二个问题是热杂讯，其中以来自雷射光本身的热最是严重；雷射光点打在镜子中心使之温度上升，加热不均匀的结果，会导致镜面变形。
