Receiver noise temperature的意思|示意

Three subjects-UWB radar antenna, UHF/VHF band receiver noise temperature, and the target detection from background, which are main factors in UWB SAR range equation, are studied.

从超宽带雷达天线、UHF/VHF波段接收机噪声温度以及最小可检测的信噪比三个方面研究了超宽带合成孔径雷达方程。

The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.

混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。

This SIS mixer receiver is reliable, and can achieve good noise performance even operated at 4.3k temperature with a close cycle helium refrigerator.

这种SIS混频接收机性能可靠，且可用闭合循环氦制冷机冷却，在4.3 K温度操作即可达到好的噪声性能。

This paper presents a way of inverse-direction radiating noise temperature calculation in microwave radiometer receiver. And two methods are given to reduce the radiating noise.

本文介绍了微波辐射计接收机逆向辐射噪声温度的计算方法，同时也给出了降低这种逆向辐射噪声温度的两种方法。

Through the refrigeration, we can greatly reduce the noise temperature of the receiver, so as to improve the sensitivity of the receiver.

通过制冷可以很大程度上降低接收机的噪声温度，从而提高接收机的灵敏度。

The performance of a digital receiver will be changed significantly when the equivalent noise temperature of the A/D module rises to hundred thousands degrees.

等效噪声温度高达数十万度的A/D模块，引起了数字接收机性能的深刻变化。