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false-alarm
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  虚警
     Experimental results show that when IR threshold coefficient is 2.0-2.4, more than 95% of the detection probability and lower false-alarm probability for targets with signal-clutter-ratio of 1 can be obtained by the algorithm.
     实验结果表明,红外阈值系数选取2.0-2.4时,算法可对信杂比为1的点目标实现高于95%的检测概率及较低的虚警率。
短句来源
     The modified generalized sign detector (MGSD) and the two-pole filter detector (TPFD) are simulated by the use of Monte Carlo method,to obtain the curves of their false-alarm probubility,detection probability and angular accuracy in Weibull noise.
     采用Monte Carlo法模拟了修正型广义符号检测器(MGSD)和双极点滤波器检测器(TPFD),给出了它们在Weibull噪声中的虚警概率检测概率和测角精度曲线。
短句来源
     Calculating Formulae of Detection Probability and False-Alarm Probability of the Pulse-counter Detector of small Sliding Window
     小滑窗脉冲计数检测器发现概率与虚警概率的计算公式
短句来源
     THE GEVT MIXED METHOD FOR THE CALCULATION OF FALSE-ALARM PROBABILITY OF RADAR DETECTORS
     计算雷达检测器虚警概率的GEVT混合法
短句来源
     Based on the spread-spectrum code acquisition scheme of P-SCDMA ( Packet-Switch-Synchronous Code Division Multiple Access) , the paper sets up a signal model and analyzes parameters of the acquisition system theoretically with the statistical result of partial-correlation of m sequence. Figures of false-alarm probability versus E_c/N_o and figures of detection-probability versus E_c/N_o on AWGN condition are presented.
     在包交换同步码分多址 (P- SCDMA:Packet- Switch- Synchronious Code Division Multpiple Access)系统的扩频序列的捕捉方案基础上 ,建立了信号模型并运用 m序列部分相关的统计结论从理论上对捕捉系统的参数进行了分析 ,给出了在 AWGN环境下虚警概率对 EC/N0 、检测概率对 EC/N0 的图像。
短句来源
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  假报警
     A Discriminating Method of Restraining False-alarm of Warning Device
     抑制报警电路假报警的鉴别法
短句来源
  “false-alarm”译为未确定词的双语例句
     Design of Intelligent Intrusion Detector with Lower False-Alarm Based on PIC12F675
     基于PIC12F675的低误报智能入侵探测器设计
短句来源
     4. Male faces gain more false-alarm rate across psychological gender and physiological gender.
     4.不论心理性别男性还是心理性别女性,不论生理性别男性还是生理性别女性对男性人脸的误报率都更高。
短句来源
     By using multisensor/multicriteria detector,the false-alarm can be decreased,the sensitivity is increased and different kinds of fire signals effectively are recognized.
     利用多传感器和多判据探测器 ,可以减少误报警 ,增加灵敏度 ,有效地识别各种火灾信号
短句来源
     By means of dividinga whole slide -window into several divisions, the false-alarm probability and the influence of the target-split may be reduced.
     多窗口滑窗检测器将一个大滑窗分割成几个小滑窗来处理,以进一步减小虎警概率和降低目标分裂的影响。 本文重点分析了这两种改进型滑窗检测器的性能。
短句来源
     The simulation result shows that the proposed UID will be ensure a low false-alarm rate in both the multipath channels and heavy "near-far effect" environments.
     仿真结果证明,在多径信道和强"远-近效应"环境下,该UID可以保证较低的误警概率.
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  false-alarm
In order to keep the observer's false-alarm rate under a certain specified value, it is necessary to have an acceptable matching between the observer model and the system parameters.
      
Neyman-Pearson detection is utilized to determine the effects of false-alarm and signal characteristics on the measures.
      
However, the coincidence electronics are optimized for neutron to gamma-ray discrimination allowing very sensitive measurements with a low false-alarm rate.
      
The objectives of our study were (1) to implement intelligent respiratory alarms with a neural network; and (2) to increase alarm specificity and decrease false-alarm rates compared with current alarms.Methods.
      
The detection rates for the Bayesian checks outperformed those for the classical checks, but at the cost of higher false-alarm rates.
      
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This paper deals with the using of six stages differential pair transisto-f amplifier circuits with low-and-high gain in radar receivers at intermediate frequency(30MC) systems. Because it us.es pair direction cus-off limiting rather than of saturation limiting. To integrate number of minority carriers in transistor base has been avoided. So that response velocity of Receiver intermediate frequemcy systems are very rapid. Small signals after Radar target strength ocho have forcible display. If we accurately...

This paper deals with the using of six stages differential pair transisto-f amplifier circuits with low-and-high gain in radar receivers at intermediate frequency(30MC) systems. Because it us.es pair direction cus-off limiting rather than of saturation limiting. To integrate number of minority carriers in transistor base has been avoided. So that response velocity of Receiver intermediate frequemcy systems are very rapid. Small signals after Radar target strength ocho have forcible display. If we accurately select transistors and circuit parameters. Small signals have high gain, but great signals have low gain. Output signals amplitudes-input signal amplitudes have logarithmic relation. Input signal dynamic range have over 80db. If logarithmic begining point puts below 10db receiver noise level. It still has constant false-alarm rate characteristics.

本文阐述了在雷达接收机中频(30兆赫)系统中采用六级双增益级差分对晶体管放大电路时,由于它本身是采用双向截止限幅而不是饱和限幅,故避免了晶体管基区积累大量少数载流子现象。这样使接收机中频(30兆赫)系统响应速度很快,对雷达目标强回波后面的弱信号有较强的显示能力,如果管子及线路参数选得正确时,则可做到:小信号具有高增益,大信号具有低增益,输出信号与输入信号幅度成对数关系,输入动态范围可达80分贝以上。如果对数起点选在接收机噪声电平以下10分贝时,它还具有恒虚警特性。

In this paper the performance of a type of frequency analyzer under white Gaussian noise distributions is discussed. The frequency analyzer is an essential part of the acquisition receiver in precisiontracking systems. The analyzer we developed is of the type of multiple current switched logic circuit with weighted resistance network. The points, which are investigated with emphasis, are as follows. (1)The selection of the optimal threshold of signal detection. (2) The false alarm and miss probabilities in multiple...

In this paper the performance of a type of frequency analyzer under white Gaussian noise distributions is discussed. The frequency analyzer is an essential part of the acquisition receiver in precisiontracking systems. The analyzer we developed is of the type of multiple current switched logic circuit with weighted resistance network. The points, which are investigated with emphasis, are as follows. (1)The selection of the optimal threshold of signal detection. (2) The false alarm and miss probabilities in multiple channels with unequal bandwidth. (3) The influence of noise on the analyzer output. (4) The performance of the analyzer under more generalized condition, that is, when the input is a set of spectrum lines.It is shown that our analyzer has the ability to guide the receiver to lock on the carrier even when the carrier amplitude is smaller than that of the subsidiary lines of subcarriers.

本文分析一种频率分析器在噪声作用下的性能。频率分析器是精密跟踪系统中截获接收机的核心部分。该分析器因采用权电阻网络和多路电流开关逻辑电路而使其具有某些特殊功能。文中讨论了;信号检测的最佳门限选择;在不等带宽的多路系统中虚警和漏报概率;噪声对频率分析器输出的影响;输入为一组谱线时分析器的性能。分析表明,甚至在载波谱线低于副载波谱线时,该分析器也能把精密跟踪接收机引导到载波上而不致错锁。

Commensurability is an extension of periodicity. From commensurability of numerical data may be abstracted non-accidental signals. At the expense of increasing probability of misinformation (false alarm), weak signals in very wide range of frequency spectra may be resolved. Several examples from various fields are given. In an example, masses of neutrinos are estimated.

可公度性是周期性的扩张。从数据中的可公度性可抽提出并非偶然的信号。以增加错认(或虚惊)概率为代价,可以在很宽频谱范围内分辨微弱的信号。文中提出属于不同领域的实例。其中一例估计了中微子质量。

 
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