摘要
DWDM系统的传输质量受到线性和非线性两类效应引起的损害影响,导致光信号噪声比下降,误码率增大。由于误码率与Q因子相关,而Q因子或误码率又可由眼图的垂直张开度观测,故通过确定Q因子的伪误码率的方法就能快速评定测量DWDM系统的传输质量。
The transmission quality of DWDM system is affected by the damages from linear and nonlinear effects, so the ratio of optical signal to noise is reduced and the bit error rate is increased. Bit error rate and Q factor are correlated, and they can be observed from the vertical opening degree of eye graphics, therefore the fast evaluation and measurement to the transmission quality of DWDM system can be realized through confirming the pseudo-error rate of Q factor.
出处
《现代电信科技》
2005年第8期51-54,共4页
Modern Science & Technology of Telecommunications
