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在低温接收系统中,检波器作为检验输入功率的重要指标,是低温接收系统正常工作与否的标志之一。文中介绍了利用集成对数检波芯片检波技术检测低温接收系统输入功率,提出了设计思路,详细介绍设计方案,如何设定报警阈值以及在不同环境温度下对检波结果的影响。
In the low-temperature receiving system, the detector as an important indicator of the input power test is one of the signs of the normal operation of the low-temperature receiving system. In this paper, the integrated logarithmic detector chip detection technology is introduced to detect the input power of cryogenic receiving system, and the design ideas are presented. The design scheme is introduced in detail, and how to set the alarm threshold and the influence on the detection results under different ambient temperatures.