虚警概率

分析表明，时域目标检测算法能够以很高的检测概率和很低的虚警概率完成目标的检测，实验方法也证实红外缓慢变化背景中小目标时域检测算法具有很好的性能。

Theoretical analyses show that this method can detect targets on very high detection probability and very low false alarm probability .

论文从水印检测过程中可能发生的两类错误入手，讨论了降低检测虚警概率和漏报概率的一般方法。

Then the paper makes a discussion on how to decrease the probability of false alarm and probability of false rejection .

一种新的具有恒虚警概率的PN码自适应盲捕获方法

A new adaptive PN code blind acquisition scheme with CFAR

MonteCarlo仿真表明，在密集杂波条件下，高检测概率会带来高的虚警概率；

Monte Carlo simulation shows that higher detection probability goes with higher false alarm probability in the background of heavy clutters ;

实验结果表明，在有效控制虚警概率的前提下本算法对LSB匹配隐写有良好的检测性能。

Experiment shows that this algorithm has well detecting performance to LSB matching .

给出了该方法的虚警概率和检测概率表达式，并介绍了它在分布式CFAR检测系统中的应用。

The expressions of the detection probability and false alarm probability are given . An apph'cation of the method is illustrated to distributed CFAR detection systems .

采用Tong算法作为接收机的捕获判决策略，通过提高N和M值可以大大提高接收机的捕获概率和降低虚警概率，使得捕获更加明确。

Tong algorithm was select as the software receiver acquisition decision strategy , by improving the N and M can greatly improve the capture probability and reduce the probability of false alarm , making the capture more clearly .

在常用的平方律PN码捕获检测器中，相关器输出信号的概率密度函数是估计检测概率和虚警概率的重要依据。

In the commonly used square law PN code acquisition detector , the probability density function of the correlator output signal is the important basis for evaluating the probabilities of detection and false alarm .

提出了一种改进的DMF结构，仿真分析了该结构的检测概率和虚警概率等捕获性能。

An improved structure of DMF is presented . The acquisition performance such as detection probability ( Pd ) and the false alarm probability ( Pf ) of this structure are analyzed and simulated .

本文从对GPS信号的结构出发，在单频、宽带及部分频带干扰模式下，分析了GPS接收机C/A码捕获过程的检测概率和虚警概率等性能指标。

This paper is on the research , based on GPS signal characteristic , of the important parameters in acquisition of C / A code in a GPS receiver such as the probability of detection and , which are affected by single-tone jamming , wide-band jamming and part-band jamming , etc.

利用Fokker-Planck方程的稳态概率密度函数，推导了该非线性检测器的检测概率、虚警概率和偏移系数，分析单方波脉冲在该检测器下的性能。

The performance of the detector is analyzed , and the probability of detection ( PD ), the probability of false alarm ( PFA ) are deduced by the probability density function ( p.d.f ) of Fokker-Planck equation .

此外，实验结果表明该算法对MP3压缩、重采样之类的常规音频信号处理攻击具有较强的鲁棒性，且水印系统的虚警概率和漏警概率较低。

Experimental results show that the watermarks are imperceptible and robust against various common audio signal processing attacks , such as MP3 compression , re-sampling , etc , moreover , the false alarm and false rejection probability of the proposed algorithms are all low . 5 .

本文简要介绍了用DJS-6计算机的模拟方法和用重要采样法来模拟单元平均值检测器的较低虚警概率。

In this paper the procedure of simulation by the computer DJS-6 is briefly introduced and the importance sampling is applied to the simulation of lower false alarm probability of a cell-average detector .

研究了用雪崩二极管（SiAPD）检测激光脉冲回波信号的统计特性，分析了激光测距系统的探测概率、虚警概率和漏探测概率与系统参数及检测电路所设阈值的关系。

Statistical properties of pulse laser signal detection using SiAPD as a detector has been theoretically studied , and the relation between the preset threshold and detection performance has been analyzed .

文中用广义Lambda分布描述帧检测器在无信号时的统计特性，并根据Neyman-Pearson准则给出一定虚警概率下的判决阈值，最后通过计算机仿真得到帧检测性能。

Parametric generalized lambda distribution is utilized to fit the statistical characteristic of detector when only noise exists , which is then used by Neyman-Pearson rule to determine decision threshold at given false alarm probability . Finally , computer simulations achieve detection performance of the obtained frame detector .

此方法用于鱼雷的目标检测，能大大提高系统的目标检测概率，或降低检测的虚警概率。

In this way , the target detecting performance is improved greatly .

激光信号处理器的检测和虚警概率分析

Detecting probability and false alarming rate study of digital signal processor of laser ranger

本文论述非瑞利杂波中雷达检测概率和虚警概率的计算机蒙特卡洛模拟方法。

The Monte Carlo Simulation Method of radar detection Performance in non-Rayleigh clutter is described .

基于虚警概率最大准则的小波阈值去噪算法研究

Research on Algorithm of Wavelet Threshold Value De-noising Based on Maximum Criterion of False Alarm Probability

为了降低虚警概率，激光警戒接收机大多采用多元相关探测技术。

Multiple-unit correlation detection is used to lower false alarm probability in most laser warning receivers .

文中分析了在白高斯随机噪声情况下，系统的虚警概率和捕获概率。

Propabilities of false alarm and acquisition of the system in white gaussian noise are discussed .

并对两种算法进行了性能分析，推导出了盲算法的虚警概率和门限值的闭合表达式。

And the closed expression of false alarm probability and threshold are derived in the paper .

有些光电检测设备要求高的探测概率和低的虚警概率，使用单次检测不能达到要求。

Some optoelectronic detection equipment are required to have high detection probability and low false alarm probability .

这种门限设置方法，可以用于瑞利衰弱信道，可以有效降低虚警概率。

This method can use in Rayleigh fading channel , and could reduce the false alarm rate .

就该算法对目标检测的虚警概率和检测概率进行了分析，证明了该算法的有效性。

This paper studies the false alarming rate and detecting probability and proves that this algorithm is effective .

仿真结果表明，该方法能获得较高的检测概率，较低的虚警概率。

The simulation results show that the method can obtain high detection probability and low false alarm probability .

经验证，超分辨处理后在相同的虚警概率下目标的检测概率有了显著的提高。

Certified , super-resolution treated the same false alarm probability of detecting a target probability of a significant improvement .

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 .

频谱感知的两个重要衡量参数是：检测概率与虚警概率。

There are two important parameters associated with spectrum sensing : probability of detection and probability of false alarm .

最后采用相位门限进行检测处理，有效降低了虚警概率；

In the end , the detection with the phase threshold method was performed to reduce the false alarm rate effectively .