The optimum detector for passive detection is energy detector. Yet energy detector usually deteriorates due to fluctuation of background interference and a decrease in SNR.
被动信号检测的最佳检测器是能量检测器，但是能量检测器往往因为背景干扰的起伏和信噪比的劣化导致检测性能的下降。
Digital monitoring system has set aside alarm interface, it would be able to take the initiative to connect detector or passive emergency button, an increase of incidents of police video features.
数字监控系统预留有报警接口，将来可以连接主动探测器或被动式紧急按钮，增加对突发事件的报警录像功能。
In the area of electronic security detectors, passive infrared detector is widely used because of their low cost, technical performance and stability of by users and professionals welcome.
在电子防盗探测器领域，被动红外探测器的应用非常广泛，因其价格低廉、技术性能稳定而受到广大用户和专业人士的欢迎。
Following the above shortcomings passive infrared detector, combining PARADOX Maple Leaf infrared detection technology for detailed analysis.
下面针对上述的被动红外探测器的缺点，结合PARADOX枫叶的红外探测技术，进行详细分析。
Following the above shortcomings passive infrared detector, combining PARADOX Maple Leaf infrared detection technology for detailed analysis.
下面针对上述的被动红外探测器的缺点，结合PARADOX枫叶的红外探测技术，进行详细分析。
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