Widely used in guidance and remote sensing, millimeter wave radiometer is a typical microwave passive detection system.
毫米波辐射计是一种典型的无源微波探测系统，在遥感和制导中获得了广泛的应用。
Because this system gives no radiation wave itself and works completely in passive mode, multi-station passive detection system has attracted more and more attention in a variety of country.
由于被动探测系统本身不发射电磁波，完全是被动工作方式，因此，近年来，多站无源探测工作方式日益受到各国的广泛重视。
A crucial issue in a passive sonar system is detection of the spectral lines.
在被动声纳系统中，线谱检测是一个至关重要的问题。
This paper analyzes the problems existing in current intrusion detection system, and probes into the application of passive fingerprinting identification technology in the intrusion detection system.
分析了当前入侵检测系统所存在的问题，探讨了被动指纹识别技术在入侵检测系统中的应用。
The research work of the dissertation includes the following two parts: researching the passive ranging technology and developing system hardware of the sonar pulse detection module.
本论文的研究工作分为两个部分：被动测距技术研究和声呐脉冲侦察模块系统硬件的研制。
Intrusion Detection system (IDS) is an activity based network security system. As the logical supplement of usual passive policy, it is the important part of whole security system.
入侵检测系统(IDS)是一种基于主动策略的网络安全系统，是对常用的被动策略的逻辑补偿，是网络安全系统中的重要组成部分。
The current worm detection and prevention system is a passive one in which unknown worms can't be detected and prevented.
当今的蠕虫检测防御系统都是被动的检测防御系统，只能进行事后处理，不能检测和防御未知蠕虫。
In order to avoid such accident, a warning system using passive infrared target detection was developed. It can search body targets in the mine cars and give sound and light warning as well.
为了避免此类事故，根据红外检测原理研制了被动式红外探测报警系统，以此对矿车里的人体目标进行检测，并作出声、光报警。
The main works of this paper surrounds the passive millimeter wave imaging system structure, include of the radiation temperature test on different surface targets, image denoise, edge detection.
本文主要通过毫米波被动成像系统，完成了不同面目标的辐射温度测试，图像去噪处理，图像边缘检测等工作。
The main works of this paper surrounds the passive millimeter wave imaging system structure, include of the radiation temperature test on different surface targets, image denoise, edge detection.
本文主要通过毫米波被动成像系统，完成了不同面目标的辐射温度测试，图像去噪处理，图像边缘检测等工作。
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