快速自动增益控制技术研究

STUDY ON FAST AGC TECHNIQUE

在光电干扰环境中，红外干扰弹辐射能量变化剧烈，抗干扰红外导引头要求实时表征红外干扰弹辐射能量动态变化，以满足幅度鉴别和幅度相关的需要。主放对自动增益控制快速性要求很高。文章介绍了前馈快速自动增益控制电路、计算机增益控制电路工作原理的性能，并对几种自动增益电路性能进行了对比。

In electro-optical countermeasure environment, the variation of radiant energy of IR flare is very acute. The ant jamming IR seeker demands the dynamitic change of radiant energy of IR flare to be reflected in real time to meet the requirements of amplitude discrimination and amplitude correlation. The main amplifier demands a high rapidity in AGC. It is introduced that the principle and peffermance of the fast feedward AGC circuit and the computer gain control circuit in this paper. The characteristics of several AGC circuits are also compared.