本文将介绍射频测量的关键---「转换函式(transfer function)或「变换增益(conversion gain),以及射频组件经常发生的「周期性固定噪声(cyclostationary noise)之特性。
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该电路作放大和分频时,工作稳定、同步范围宽,频率变换增益高。
Utilized as an amplifier or divider, it has good stability, wide synchronous range and high translation gain.
根据这一结论,光束在某些满足一定条件的充满增益或损耗介质的高斯反射镜腔的传输,可以视作连续的复数阶傅立叶变换过程。
The beam propagation between two Gaussian reflectivity mirrors filled with gain medium can be regarded as a complex-order Fourier transform process.
然后经过一级可变增益放大器,在经过A/D变换,通过单片机串口将数字数据传输到ARM主控制板内进行处理。
Then after a variable gain amplifier, After A / D conversion and through the microcontroller serial digital data to the ARM within the main control panel for processing.
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