Novel millimeter wave receiver output signal dynamic expansion device

The invention discloses a novel millimeter wave receiver output signal dynamic expansion device comprising a differential amplifier, a first voltage follower, a second voltage follower, an STM32 single chip microcomputer, a subtracter, a logarithmic amplifier and a resistance network; the amplification receiver outputs an analog signal, and the analog signal is sampled via the STM32 single chip microcomputer and performs feedback modulation. According to the device provided by the invention, the problem of detection oversaturation due to the fact that the dynamic range of an output signal of the millimeter wave receiver is over large is solved, expansion on the analog signal is achieved, and meanwhile detection sensitivity is ensured. 本发明公开了种新型毫米波接收机输出信号动态扩展装置，包括差分放大器、第电压跟随器、第二电压跟随器、STM32单片机、减法器、对数放大器以及电阻网络；该装置放大接收机输出模拟信号，通过STM32单片机采样模拟信号并进行反馈调理。本发明解决了毫米波接受输出信号动态范围过大导致检测过饱和的问题，实现在模拟信号上的扩展，同时保证了探测灵敏度。