Bit Error Rate和Q factor有什麼關聯?

jelly811737

Bit Error Rate和Q factor有什麼關聯?
1 Q; ~4 @, f3 N/ I/ H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，
% ~% @2 H: X2 z: R) L7 H所以在想BER和Q factor是否有關聯性存在。
安捷倫公司有解釋:
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.
When it is impractical to measure BER with conventional techniques, Q may be used to estimate BER.
Q Factor is a figure of merit often used in optically amplified systems in which noise from the amplifiers dominates receiver noise.
% z( a7 g) P# N2 H! r* B8 z- ZA Q measurement application is included in every N4906A.
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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。
麻煩各位幫幫我。