等效噪声 meaning in English
equivalent noise
Examples
- Measurements of the electrical properties of electronic tubes . part 7 : measurement of equivalent noise resistance
电子管电性能的测量.第7部分:等效噪声电阻的测量 - The pin silicon photodiode made by alice - china group , which has a large area and high performances , is an important part of the photon spectrometer ( pros ) pbwo4 detector read - out system on the alice experiment . the pin diode has a sensitive area of 16x17 mm2 . its leakage current is lower than 5na at room temperature
本工作研制的pin硅光电二极管的灵敏区面积为16x17mm2 ，常温漏电流小于5na ，紫光区量子效率约为83 % ，结电容为110 - 120pf ，以及由pin光电二极管与电荷灵敏前置放大器组成的读出系统的噪声水平在- 25下小于527个等效噪声电荷，并经过了长期性能稳定性的考验 - Abstract : a noise model for the analog correlator used in the ultra wideband receivers is proposed due to lack of simulation capability on noise performance of the correlator in current eda tools . the analog correlator circuit is divided into several parts to calculate the equivalent noise sources respectively . the ideal impulse generators , instead of the noise sources , are then applied to obtain the time varying transfer functions . fourier transforms are carried out to explore the relationship between the noise input and output in frequency domain for each part . then the symmetrical noise sources are grouped together and the periodicity of the circuit is utilized to further simplify the model . this model can be used to evaluate noise performance of the correlator
文摘:给出了分析模拟相关器的噪声模型.将相关器分成不同的几个子模块后,对各模块分别计算等效噪声源.然后用理想脉冲源代替噪声源计算电路的时变传输函数,接着用傅里叶变换计算输入输出的频域关系.利用电路的对称结构合并对称的子模块可以进一步简化模型.该模型可以用来估计相关器的噪声性能