2) passive detection
被动探测
1.
Research on signal detection techniques in passive detection;
被动探测中的信号检测技术研究
2.
Based on analyzing the distance equation of MMW radiometer,we discuss the effect of MMW radiometer parameters and target s characteristics on detection distance from two directions of increasing and decreasing detection distance and raise the enhancing method of MMW passive detection function and the direction of MMW radiometric characteristics control.
在分析毫米波辐射计的距离方程的基础上,从增加和减少探测距离两个方面,探讨了毫米波辐射计参数与目标自身特性对于探测距离的影响,提出毫米波被动探测性能的提高手段与毫米波辐射特性的控制方向。
3.
In strong noisy jamming environment, it is possible for 2～3 neighbor jammed radars to change its work mode from active detection to passive detection, and to locate noisy source in the air.
在强噪声干扰环境中 ,将邻近 2～ 3部受干扰的陆基雷达 ,从主动探测转入被动探测工作 ,利用干扰信号对空中干扰平台进行无源定位是可能的。
3) passive acoustic detection
被动声探测
1.
In this paper,the methods for estimation of the time delay of a passive acoustic detection system are summarized and the advantages and disadvantages of existent methods on estimation of time delay are analyzed.
综述了被动声探测系统的时延估计方法，分析了现有时延估计方法的优缺点，结合国内外研究现状，评述了被动声探测系统时延估计技术的发展。
2.
In the background of the research and development of simulation, test and evaluation system for passive acoustic detection network, the problem of data simulaton for passive acoustic detection network was discussed.
以被动声探测网数据融合仿真测试评估系统的研究和开发为背景,讨论了被动声探测网的数据仿真问题。
3.
In order to improve the precision of the passive acoustic detection,this paper establish the high precision of the time delay.
为了提高被动声信号定位精度,建立高精度延时,总结了用于被动声探测系统的时间延迟估计方法,分析了现有时间延迟估计方法的优缺点,结合国内外研究现状,评述了用于被动声探测的时间延迟估计技术的发展。
4) Passive/Active Detection
被动(主动)探测
5) active/passive detecting
主动/被动探测
6) Dual Tone Multi Frequency detection [DTMF detection]
双音调多频探测
补充资料：核爆炸地震波探测(见核爆炸探测)
核爆炸地震波探测(见核爆炸探测)
nuclear explosion seismic detection
hebaozho dizhenbo tanee核爆炸地震波探测(nuclear explos，onseismie detecuon)见核爆炸探汉，l。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条