本文主要讨论了雷达辐射源识别专家系统中推理机的设计。

The paper mainly focuses on the design of the reasoning engine of the radar radiation recognition expert system.

通常是由于长时间暴露于高温或者红外线辐射源，例如加热垫或者热水瓶。

It is typically caused by prolonged exposure to heat or an infrared source such as a heating pad or hot water bottle.

这项研究让20棵白蜡树在三个月的时间里暴露在各种辐射源之下。

The study exposed 20 ash trees to various radiation sources for a period of three months.

对办公族来说，每天都要面对的电脑是重要的电波辐射源。

Family run for office, face the computer every day is important to radio sources.

对宽带线性调频信号的方位角估计以及对这类信号辐射源单站跟踪问题进行了研究。

In this paper, the problem of DOA estimation and single station localization and tracking of wideband chirp signals emitter researched.