毫米波辐射计的增益自动控制和本底噪声的自动补偿

Automatic Gain Control and Background Noise Automatic Compensation of Millimeter Wave Radiometer

针对毫米波辐射计的增益漂移和本底噪声的变化，本文提出采用ＰＣ计算机实现增益自动控制和本底噪声自动补偿技术。文中分析了增益控制的电压增量和本底噪声直流补偿电压增量的分析式，说明硬件实现过程。

In view of gain shift and background noise change of millimeter wave radiometer,this paper presents a method to automatically control its gain and compensation voltage of background noise with PC computer.Voltage increment of gain control and compensation voltage increment of background noise are analyzed in detail and hardware implemention is given. [WT5”HZ〗