In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier.

在这种情况下，信源给发射机提供一个电信号，发射机中的电路驱动光源以实现对光载波的调制。

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The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.

前级采用电压单环调制方式，后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。

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The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.

前级采用电压单环调制方式，后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。

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