The main elements of the design include: phase-sensitive signal demodulation circuit analysis and design;

设计的主要内容包括：相敏信号解调电路的分析与设计；

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Based on the characteristics of telemetric phase sensitive signal, two practical demodulation schemes are introduced.

根据遥测相敏信号特点，介绍两款实用解调方案。

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Because they were so sensitive to deadly gases such as methane and carbon monoxide, a canary dropping off its perch was a highly visible signal to the miners that it was time to leave.

因为它们对于甲烷和一氧化碳等致命毒气非常敏感，从栖木上掉下来的金丝雀是一个明显的信号，告诉矿工是时候离开了。

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Much of the cost was driven by the need to replace sensitive signal and communications equipment that was wrecked by salt corrosion from the flood.

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Moreover, custom-built apps for therapy and science education are cropping up, with the existing prototype utilizing a trio of force-sensitive resistors that measure pressure and convert it into a signal that instructs the tablet.

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Unless these systems are designed carefully, the transmitted signal can cause noise in the receiver, making it not nearly as sensitive.

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