查询词典 false alarm

In order to reduce the high false alarm rate, intelligent BIT is a key test technique that should be well studied in the 21th century.

因此，为从根本上解决BIT的虚警问题，智能BIT技术就成为测试领域21世纪的重点研究项目之一。

Numerical experiments were conducted on real AVIRIS data to validate the effectiveness of the proposed algorithm. The detection results were compared with those detected by the classical RX algorithm and KRS which did not suppress the backguound information. The results show that the proposed algorithm has better detection performance, lower false alarm probability and lower computational complexity than other detection algorithms.

为了验证算法的有效性，利用真实的AVIRIS数据进行了实验研究，并与经典RX算法、未抑制背景的特征空间核RX算法的检测结果相比较，结果表明基于背景残差数据的检测算法具有良好的检测性能和较低的虚警，而且运算复杂度较低。

A feasible Constant False Alarm Rate detector based on Anderson-Darling test for multiple interfering targets and clutter edge scenarios is proposed and referred as AD-CFAR, which chooses reference cell length and detection strategy adaptively according to characteristic of input clutter serials.

提出一种基于Anderson-Darling检验的恒虚警检测方法，根据输入杂波特性，实现干扰杂波块删除、杂波分布检测，具有参考单元数可变、检测策略可变的特点，提高了检测器复杂杂波环境下的鲁棒性。

In nonhomogeneous background,slight increase of mean level of clutter power could cause sharply increase of false alarm probability.

在非平稳杂波背景中，背景杂波平均功率的轻微变化会使虚警概率急剧上升。

In the experiments, the one-class classifier acquires 100% detection rate and 4.9% false alarm rate for sequences of system calls.

通过对主机系统执行迹数据集的测试，试验获得了对异常样本接近100%的检测率，而误报警率为4.9%。

No additional data for frequency tracking are need, but higher estimation accuracy and low computational complexity can be obtained. Finally, a kind of optimizing joint algorithm for symbol timing, frequency synchronization and channel estimation is proposed. The false alarm probability and miss detect probability of the symbol timing are derived. We proved that the time－frequency offset domain random sequence sliding in the frequency offset direction is orthogonal with the original random sequence, and proposed a new integer frequency offset estimation algorithm. The coarse estimation methods for fractional frequency offset both in AWGN and multipath channels are proposed too.

最后，提出了一种优化的符号同步、频偏估计和信道估计的联合算法，推导了符号同步方法的虚警概率和漏检概率，给出了随机序列在时间－频率偏移域沿频率偏移方向滑动后与原序列近似正交的证明，提出了一种新的在时间－频率偏移域沿频率偏移方向进行滑动相关估计整数频偏的方法，提出了在AWGN信道和多径信道下进行小数频偏粗估计的方法，给出了小数频偏细估计的ML估计结果和利用频域PN序列取值特性的简洁的信道估计结果。

In addition, a method to reduce the high false alarm rate by raising the reflectivity threshold is also discussed.

另外，针对冰雹探测误警率过高的问题，尝试通过提高反射率阈值来解决的方案。

An important property of the ROC of the globally optimized fusion system is obtained, that is, the slope of a curve in the ROC at a particular point can be used to determine the decision thresholds at fusion center and all the sensors required to achieve the detection and false alarm probabilities of that point.

5推导出了全局最优化融合系统工作特性曲线的一个重要性质，即根据融合系统检测概率对虚警概率的导数，可以确定使融合系统工作在该工作点所需的融合中心及各部传感器的判决门限。该性质是对单传感器检测系统ROC曲线性质的重要推广，从而丰富了检测融合理论的研究成果。

TIAN Xiang is more and more difficult, and the rationale for him do not want to, we can see that he has been "sexually transmitted diseases," torture was only one bone, do not bear to leave him no matter, they also asked him to check for the Friends to help , of the test results are still to confirm a false alarm.

田祥真是越来越难缠了，本不想再理他，可看到他已被"性病"折磨得只剩下一把骨头，又不忍心丢下他不管，只好又托朋友帮忙为他检查，检验结果证实仍是虚惊一场。

The data for Shanghai Electric Power stock from April 24 to July 22 2008 are analyzed using Matlab. Compared with the standard genetic algorithm, the results show that the improved algorithm reduces the false alarm rate and shortens the computation time.

对上海电力股票2008年4月24日至7月22日的数据利用MATLAB进行了模拟，与标准遗传算法比较，改进后的算法降低了误报率，缩短了运算时间。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。