消光比计算公式为:P1ER=10logP0(dB),下列描述不正确是()A、ER表示消光比,单位为dBB、P1表示逻辑为1时光功率C、P0表示逻辑为0时光功率D、ER表示信号逻辑为1时的光功率与为0时的光功率的算术平均值
消光比计算公式为:P1ER=10logP0(dB),下列描述不正确是()
- A、ER表示消光比,单位为dB
- B、P1表示逻辑为1时光功率
- C、P0表示逻辑为0时光功率
- D、ER表示信号逻辑为1时的光功率与为0时的光功率的算术平均值
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