The temperature information acquisition unit based on C8051F330 is composed of processor, analog front-end operational amplifier, serial port communications and so on.

基于C8051F330的温度信息采集器，由处理器、模拟前端运算放大器和串口通讯等组成。

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The avalanche photodiode detector is followed by a front-end amplifier and equalizer or filter to provide gain as well as linear signal processing and noise bandwidth redution.

前置放大器与均衡器或滤波器跟在雪崩二极管检测器的后面以获得增益，线性信号处理及噪声宽带的抑制。

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This is fortunate, since most RF paths are duplex (bidirectional) channels with a need for signals to go from antenna to front end (receive mode) and from power amplifier to antenna (transmit mode).

这是幸运的，因为大多数RF路径是双工(双向)通道需要的信号从天线到前端(接收模式)和功率放大器天线(发射模式)。

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Since most commercial (COTS) devices for the radio communications industry are normally 50 ohms intrinsic impedance, there will be problems with proper matching of the main power amplifier and the receiver front end.

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