最后还研究了初始概率分布对探测概率造成的误差值。
Finally, the essays studies how many errors the initial probability distribution would cause to detection probability.
实验证明,该策略可有效改善传感器网络覆盖率和目标探测概率。
Experiments show the new strategy can efficiently improve sensor network coverage and target detection accuracy.
计算表明该方法既能有效地降低告警设备的虚警概率,又能提高探测概率。
The calculating results indicate that the modified method can reduce effectively false alarm probability, and raise the detection probability in laser warning receiver.
随着不完全量测条件下探测概率的下降,传统光电跟踪系统的跟踪性能显著降低。
The tracking performance of traditional optic-electric tracking systems degenerates significantly when there is a drop of detection probability with intermittent observation.
二者结合,可以提高卫星的探测概率、定位精度和识别精度,增强全球信息获取能力。
The combination of them can ameliorate the capability of reconnaissance satellite, improve the ability of controlling information world widely.
对这种新的恒虚警算法在斯威林2型目标假设下,我们获得了虚警和探测概率的解析表达式。
For this new CFAR detector we obtain analytic expressions of the false alarm rate and detection probabilities un-der the Swerling 2 assumption.
在此基础上,结合探测概率制定幅度门限,根据定位要求及目标尺寸,分析了脉冲个数门限的确定方法。
Then the amplitude threshold is established combined with detection probability. The method of ascertaining pulse number threshold is analyzed according to orientation requirement and target size.
通过对多元相关探测的数学分析发现尽管相关探测技术能降低接收机虚警概率,但它也降低了探测概率。
It is found that the correlation detection will reduce the detection probability of receiver by the mathematical analysis.
以信号探测和概率统计为理论基础,对星等探测灵敏度、星等有效范围和星探测概率进行了分析与估算。
Estimates the magnitude sensitivity, magnitude valid range and probability of star capture based on signal detection and probability statistics.
基于对雷达情报自动化系统日常积累的情报数据进行预处理提出了一种基于实测数据的雷达探测概率计算方法。
Based on the preprocessing of the intelligence data from radar intelligence automation system, a new computation method of radar detection probability based on the measured data is presented.
该方法采用空间分割算法建立网格,以雷达检飞资料作为基础数据,用雷达方程推算各个网络中心的探测概率。
Based on the data of radar flight for test, the method applies radar equation to estimate the detection probability of gridding center.
并综合考虑人眼的目标发现能力、目标的亮度对比度、观察等级和探测概率的要求,计算出面源目标的作用距离。
The operating range for extended target is calculated by considering of the target finding ability of eyes, contrast of target luminance, discrimination level and detection probability.
讨论了生物超微弱发光的统计分布,分析了生物超微弱发光在光子成像系统中的探测概率和光子图像的探测极限。
Image quality is improved. The probability of detection of ultra-weak bioluminescence in the photon count imaging system and limit of detection of photon image are discussed.
利用激光雷达方程,信噪比模型和可探测概率模型,对两种技术体制的激光器的技术参数进行分析,最后结合国内技术水平分析,确定了激光发射机的各项指标。
This thesis emphasizes on solving series key techniques in theory analysis, simulations and prototype development, the laser transmitter prototype of range-gated imaging system has been developed.
首先,对侦察雷达所能探测到的目标雷达信号的载频、脉宽、重频,应用证据理论将其组合,得到雷达参数的联合概率分配函数。
Firstly, the obtained radar signal radio frequency, pulse width, repeat frequency are composed to get a combined probability assignment function of radar parameters by applying D-S method.
低截获声纳通过选择合适的发射信号,在保持探测能力的同时,降低被敌方侦察声纳截获的概率。
Low probability of interception (LPI) sonar selects appropriate transmitting signals and reduces the probability of being intercepted by hostile scouting sonar while it maintains detection capability.
通过分析相关试验数据,可以看出高精度的炮塔方位角有助于提高系统对目标的探测精度和截获概率。
Through analysis for related test data, it can be seen that high accuracy turret azimuth Angle has improved target capture probability and target detection precision of system.
为了提高中程飞行冲突探测的精确性,有必要为飞机运动建立一个更精确的概率模型。
To increase the accuracy of mid-range conflict detection, designing a more ac-curate probabilistic model of aircraft motion is necessary.
这种探测方式对引信探测性能的影响并不大,但却严重限制了引信对目标的识别概率。
Side looking could influence the performance of fuze detecting target little, but could decrease probability of fuze recognizing target very much.
它降低了虚假警报率和干扰警报率,但不会降低高概率的探测级别。
It offers low false alarm rates and nuisance alarm rates without compromising on high probability of detection levels.
提出了低脉冲重复频率(LPRF)PD雷达探测飞行器目标的发现概率计算方法。
The detection probability calculating method about low pulse repetition frequency(LPRF) PD radar against air vehicle is studied.
基于静态结构识别方法,提出了服役结构损伤探测及状态评估的概率分析方法。
A method is proposed to detect damages and assess the status of an existing structure from static test data.
深弹引信在对目标进行探测的过程中会遇到来自邻近深弹回波信号的干扰,邻弹干扰是导致虚警概率增加的最主要因素。
In the process of target detection, depth bomb fuze will undergo the interference from echo signal of neighborhood bomb that is the primary factor which causes high false-alarm probability.
该方法可以在搜索资源有限的条件下优化监测资源的分配方案,使成功探测到事故性污染源的概率最大。
With this method, an optimal search plan can be obtained to maximize the probability of detecting the source of water pollution within finite time.
在探测器产生光电子的概率为泊松分布和高斯分布的情况下,分别对信号的探测率和虚警率进行了定量的计算。
When the probability of the photoelectrons produced by the detector is of Poisson or Gaussian distribution, the detectivity and false alarm probability of the signal are calculated respectively.
研究了空洞探测问题,提出了用概率方法这一新颖思想来确定空洞在平板中的位置。
This paper considers the exploration problem of hole, provides new ideas which are probabilistic and sorting methods, to determine the position of hole.
海上蒸发波导的高发生概率、大覆盖范围使其在雷达探测性能的评估上起到了不可忽视的作用。
Evaporation duct has play an important role in the evaluation of radar coverage predictions because of its great probability and large coverage area.
结合潜艇利用跃变层规避主动声纳探测的战术背景,对跃变层对主动声纳的搜潜概率影响进行了研究。
The effects of thermoclines depth, thickness and sound velocity change on searching submarine probability were discussed, and lastly.
在不同天气、不同背景条件下做实验,得到系统在各种情况下的探测极限及识别概率。
Experiment was done under different weather and different background conditions, so detection limits and identification probabilities of the system under different conditions were obtained.
在不同天气、不同背景条件下做实验,得到系统在各种情况下的探测极限及识别概率。
Experiment was done under different weather and different background conditions, so detection limits and identification probabilities of the system under different conditions were obtained.
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