数字光纤接收机的灵敏度计算与其输入光脉冲波形直接相关。

The sensitivity of a digital optical fiber receiver is directly relevant to the optical pulse shape at the input of the receiver, and varies with the optical pulse.

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因此如何提高GPS接收机的灵敏度成为当前迫切需要解决的问题。

So improving the sensitivity of GPS receiver becomes the problem that should be addressed.

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通过制冷可以很大程度上降低接收机的噪声温度，从而提高接收机的灵敏度。

Through the refrigeration, we can greatly reduce the noise temperature of the receiver, so as to improve the sensitivity of the receiver.

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