探测

The basis of the theory model of laser radar for direct detection is built on that the maximal detectable distance is decided by certain detection probability, false-alarm rate, signal noise ratio and threshold noise ratio.

从虚警概率、探测概率、信噪比和阈值噪声比决定最大探测距离的这一角度阐述建立直接探测激光雷达模型；假设在直接检测方式下，探测器噪声可以用高斯概率密度函数表示；

It shows that the bubble detectors have a threshold energy~ 100 keV. The detection efficiency increases steeply to three order of magnitude at the threshold.

结果表明：该探测器对快中子的探测阈能约为100keV，阈能处中子探测效率急剧上升约3个数量级，阈能以上效率曲线基本平坦，中子探测效率约为15×10-4。

The stealth weapons can be detected. The conventional long wave but lower frequency radar can detect the threat target of low visibility. The laser radar, the photoelectronic detection and the radar component have the ability to detect stealth target.

隐身兵器并非不可探测，采用常规的长波低频雷达可以探测低可见性目标，采用激光雷达、光电探测和雷达组网等均具有探测隐身的能力。