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Bit Error Rate和Q factor有什麼關聯?' c; [& F$ \9 f- Q
由於在安捷倫示波器量測眼圖時發現有量測Q factor這個功能," U, ?3 _; U4 A0 T9 \4 j3 C: E. s
所以在想BER和Q factor是否有關聯性存在。
! ~6 {7 H* Y1 R! }5 H& ~5 d安捷倫公司有解釋:) f, O! \& a% F& U0 [7 O4 [
What is Q Factor?
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Q is a measure of the electrical signal to noise of the system at the receiver decision threshold. 4 ^4 r: @8 z3 j& d, o$ V
When it is impractical to measure BER with conventional techniques, Q may be used to estimate BER. ( K3 @7 D+ m# x" v4 }( P" i
Q Factor is a figure of merit often used in optically amplified systems in which noise from the amplifiers dominates receiver noise.
( ^2 I: u; x6 N2 W) V0 T2 a9 F$ J4 QA Q measurement application is included in every N4906A.# y* {; m$ L6 F+ f& g- p
( o2 z$ h- ]% r/ A' \想請問各位先進是否知道有BER和Q factor的轉換方程式,或是其他相關資料。
8 V% u1 `) \+ D) ~+ M( `) k麻煩各位幫幫我。 |
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