名词解释题再生噪声regenerative noise
名词解释题
再生噪声regenerative noise
参考解析
解析：
暂无解析
相关考题：
In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A、the signal to noise of the current optical amplifierB、the signal to noise of the previous amplifier or sourceC、the signal to noise introduced by the optical multiplexerD、the accumulated noise to signal ratio of the optical channel
Which signal and noise values will result in the best phone communication with an access point？（）A、 Signal strength 0dBm， noise level 6dBmB、 Signal strength 8dBm， noise level 9dBmC、 Signal strength 4 dBm， noise level 4 dBmD、 Signal strength 6dBm， noise level 5 dBm
Which signal and noise values will result in the best phone communication with an access point?（）A、signal strength 46dBm, noise level 95dBmB、signal strength 74dBm, noise level 94dBmC、signal strength 68dBm, noise level 79dBmD、signal strength 50dBm, noise level 56dBm
You are the Cisco Network Designer in Cisco.com. Which signal and noise values will result in thebest phone communication with an access point？（）A、 signal strength 5dBmB、 signal strength 6dBmC、 noise level 4dBmD、 noise level 5dBm
单选题In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）A the signal to noise of the current optical amplifierB the signal to noise of the previous amplifier or sourceC the signal to noise introduced by the optical multiplexerD the accumulated noise to signal ratio of the optical channel
单选题An effective braking system for windlasses on rigs in deep water is a(n)（）.Alarger chain stopperBdisc backstopping brakeChydraulic clutchDelectrical regenerative braking system
单选题Under centrifugal pumps are the volute, diffuser, mixed-flow, axial flow and （） or regenerative types.AreciprocatingBhydraulicCturbineDvane
填空题在上行容量分析中，噪声上升与负载因子的关系式为Noise rise= 10log(1/(1-x)) (负载因子用x表示);根据此关系式，我们可以得出，50%的负载对应（） dB的噪声上升。
单选题In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）Athe signal to noise of the current optical amplifierBthe signal to noise of the previous amplifier or sourceCthe signal to noise introduced by the optical multiplexerDthe accumulated noise to signal ratio of the optical channel
填空题再生中继系统的特点是无噪声积累和（）。