Steering exposure time of a camera through control electron shutter with laser echo pulse is an effective method for inhibiting background noise.
用激光回波脉冲控制电子快门来操纵摄像机的曝光时间，是抑制背景噪声的一种有效方法。
Electron multiplying CCD is the novel imager that has ultra-low readout noise and high quantum efficiency.
电子倍增CCD是超低读出噪声和高量子效率的新型器件。
Microwave broadband low noise amplifier is the important part of the receiver system of radar, electron rivalry, remote measuring and remote control.
微波宽带低噪声放大器是雷达、电子对抗及遥测遥控接收系统等的关键部件。
At last it is shown that the declining of transport and noise performance under high and low electron concentration may be weakened through the right barrier tailoring.
最后指出剪裁沟道右势垒可以弱化高、低电子气密度下输运和噪声性能的衰退。
The invention has the advantages of high stability of the emergent electron current, small noise baseline and the like.
本发明具有出射电子流稳定、噪声基线小等优点。
This paper presents a method of calculation of the noise figure of power travelling wave tubes which employ a conical Pierce gun to produce the electron beam.
本文给出了采用球形收敛枪的功率行波管噪声系数的计算方法。
The high quantum efficiency, wide dynamic range (70db) and low noise (<0.02 electron per second) performance make it can distinguish tiny biases and get accurate measurement result.
动态范围宽（70db），信号热噪声小（<0.02electronpersecond）无论测量高亮度光源（LED显示屏）还是分辨发光像素的细微偏差都能精确无误。
The high quantum efficiency, wide dynamic range (70db) and low noise (<0.02 electron per second) performance make it can distinguish tiny biases and get accurate measurement result.
动态范围宽（70db），信号热噪声小（<0.02electronpersecond）无论测量高亮度光源（LED显示屏）还是分辨发光像素的细微偏差都能精确无误。
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