1) counter-detection range
被探测距离
2) long-distance passive detection
远距离被动探测
1.
By our experimentation data,it was proved practical and can be used in long-distance passive detection of sea mines.
通过试验数据的计算和统计,效果明显,可作为水雷远距离被动探测的一种实现途径。
3) detection distance
探测距离
1.
On method for evaluating detection distance of EO system;
光电系统对空目标探测距离评估方法研究
2.
Analysis of active laser detection distance for "cat's eye" target
“猫眼”目标的激光主动探测距离分析
3.
To calculate the detection distance of an infrared homing head upon a cruise missile exactly,the infrared radiation characteristics of both a cruise misile and its terrain background are analyzed and then a model for calculating the detection distance of an infrared homing head upon a cruise missile is established in this paper.
为了准确计算红外导引头对巡航导弹的探测距离,文章对巡航导弹的红外辐射特性以及地面背景的红外辐射特性进行了分析,进一步建立了红外导引头对巡航导弹探测距离的计算模型。
4) detection range
探测距离
1.
Analysis of propagation characteristics and detection range of HF surface wave radar;
高频地波雷达传播特性及其探测距离分析
2.
Approach to estimate infrared point-target detection range against sky background based on contrast;
基于对比度的空中红外点目标探测距离估计方法
3.
Based on the signal-noise ratio threshold needed by camera for recognizing target,the performance of pulsed laser and ICCD camera,and atmosphere extinction coefficient,an equation is deduced out for calculating the detection range of the laser imaging system.
532μm的脉冲Nd∶YAG激光器,CCD相机,以及基于CPLD技术设计的距离选通同步控制板,进行了主动成像实验,并且完成了系统探测距离的计算与仿真。
5) Detecting distance
探测距离
1.
Improvement of detecting distance of UV warning system by Lowtran package and Gabor matching
基于Lowtran软件包和Gabor匹配提高紫外告警系统探测距离
2.
5,the relationships between the detecting distance of the IR detector and transferring distance was analyzed.
5时的红外探测器探测距离随传输路径L之间的变化关系。
6) detecting range
探测距离
1.
The detecting range of SBIRS is an- alyzed.
在红外探测器工作原理的基础上,建立了主动段发动机喷管辐射、蒙皮辐射、尾焰辐射和背景辐射的模型,推导了总辐射亮度的计算公式,分析了SBIRS的探测距离。
2.
The atmospheric duct can make the radar increase detecting range to realize the phenomenon of OTH detection,so it is very important in military operation.
介绍电磁波在大气中传播的一种异常现象——"大气波导"现象,论述了大气波导形成的气象条件,以及形成波导传播的电磁波的最大陷获波长和临界发射仰角,同时论述了电磁波受大气波导影响能够增大舰载雷达的探测距离,实现舰载雷达的超视距探测及军事应用意义。
补充资料：被摄体距离
被摄体距离(Subject distance)，又称拍摄距离。指自照相机至被摄体上的距离。正确地说，从胶片面到被摄体的距离。
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