由于接收机传输特性随时间容易发生变化，因此要经常对它定标。
So the calibration must be frequently done because of the change of the transfer characteristic with time.
采用综合的分析方法从理论上分析了适合于微波副载波传输的谐振式光接收机前端的特性，提出了一整套计算公式。
An general analysis for front end performance of turned optical receiver for microwave subcarrier multiplexed lightwave system was presented. Formulas for front end circuits were deduced.
采用综合的分析方法从理论上分析了适合于微波副载波传输的谐振式光接收机前端的特性，提出了一整套计算公式。
An general analysis for front end performance of turned optical receiver for microwave subcarrier multiplexed lightwave system was presented. Formulas for front end circuits were deduced.
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