In standard reference channel, ITU standard reference creates a comb spectrum with fixed wavelength.
在参考通道，ITU标准参考模块的输出是具有固定波长的梳状光谱。
Using the reference channel and wiping off the system noise, the measurement precision was improved.
通过采用参考信道，去除系统噪音，提高测量精度。
A new semiconductor temperature sensor with single light source is proposed. The light switch is used to construct a reference channel.
一种新型的单光源半导体温度传感器，利用光开关控制设置参考通道。
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