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本文作者对当一个强干扰信号出现在参放通带内或附近时,参放输入噪声温度与泵源调幅噪声电平的关系作了理论和实验的研究,导出了一个方程式。它预示着参放输入噪声温度有所增加,并且线性地正比于干扰信号功率、参放增益以及泵源调幅噪声电平。作者曾经在一典型的军用卫星通信接收机的参放中进行实验,比较了各种速调管、耿氏管和碰撞雪崩渡越时间二极管(Impatt)振荡器泵源,这一关系通过实验得以证实。
The author of this paper makes a theoretical and experimental study on the relationship between the input noise temperature and the amplitude of pump noise when a strong interfering signal appears in or near the pass band, and an equation is derived. It indicates that the input noise temperature of the input PA increases, and it is linearly proportional to the interference signal power, the PA gain and the pump AM amplitude noise level. The author experimented with the participation of a typical military satellite communications receiver and compared various klystrons, Gunn tubes, and impulsive avalanche transit time impulse oscillator pump sources. This relationship was experimentally obtained Confirmed.