GIS partial discharge; ultrasonic detection; ultra-high frequency detection.
GIS局部放电；超声波检测法；超高频检测法。
The principle of MOS capacitance measurement based on the method of high frequency detection is presented.
MOS结构高频C-V（电容-电压）特性测量是检测MOS器件制作工艺的重要手段。
But the high frequency of sampling will result in the increase in data collecting, thus reduce the velocity of leaking detection.
但采样频率过高会增加处理的数据量，从而降低泄漏检测的速度。
Intrusion detection - Very-high frequency motion detectors - Specific standard.
侵入检测。甚高频运转检测器。专用标准。
Conventional discharge condition detection methods extracting only certain eigenvalue are not suitable for the Micro-EDM due to the high frequency and distortion of voltage wave shape.
常规放电状态检测方法由于仅采用单一的特征量进行状态判别，因此在加工信号频率高、加工波形产生畸变的微细电火花加工中，不再适用。
Increase of detection range and fast precision tracking are main difficulties in weak aerial target detection for High Frequency Surface Wave Radar (HFSWR).
增大探测距离、快速精确跟踪是高频地波雷达探测飞行小目标所面临的主要困难。
The mix-lookin detection technique for high frequency signal measurement with low frequency look-in amplifier is presented.
本文提出一种利用低频锁相放大器测量高频信号的混频-锁相检测技术。
Gaussian beam resonance system, which has very fine resonance to relic high-frequency gravitational waves (HFGWs) at the same frequency, opens a window for detection of relic HFGWs.
高斯束谐振系统对同频率的高频遗迹引力波具有很好的谐振性，这为高频遗迹引力波的探测开启了一个窗口。
A broadband, high resolution and low phase noise frequency synthesizer used in electronic detection and electronic countermeasure system is described in detail.
详细介绍了一种用于电子侦察与对抗系统中的宽带、高分辨率、低相位噪声频率合成器。
Conclusions High frequency ultrasound imaging may significantly increase detection rate of enteric intussusception.
结论高频超声显像明显提高了小儿小肠套叠的确诊率。
The Doppler spectral broadening due to nonstationary movement of target and radio-frequency clutter will decrease the veracity of target detection by high frequency ground wave (HFGW) radar.
海面低速目标的非均匀运动和射频瞬态干扰引起的多普勒谱展宽影响高频地波雷达检测目标的准确性。
Through experiment the best eddy current exciting frequency for the detection of the high voltage transmission line is determined.
通过试验确定了高压输电导线电涡流检测的最佳激励频率。
A combination method based on secondary mixing and MTD (Moving target detection) processing is proposed for high-speed targets detection in linear frequency-modulated continuous wave (LFMCW) radar.
针对LFMCW雷达高速运动目标的检测问题，本文提出了一种二次混频与MTD处理相结合的方法。
Results 40 cases appendicitis patients, low frequency probe with 35% detective rate, and high frequency probe for the detection rate of 87.5%.
结果40例阑尾炎患者，低频探头超声论断符合率为35%，而高频探头检测符合率为87.5%。
In object detection of high frequency sonar image, it needs to get the parameters of foreground objects after image segmentation.
在高频声纳图像目标检测中，对图像分割后，需要对前景目标参数进行提取。
The detection and data collection of high frequency rectangle signal are realized.
实现了高频方波信号的探测与数据的采集。
The ionosphere contamination imposing on the High-frequency(HF) radar echoes has to be suppressed since it severely degrades the detection performance of HF radar.
高频雷达回波信号受到电离层污染从而影响了雷达的探测性能，因此需要进行去污染处理。
The state parameter detection circuit can detect the temperature, conductivity of the circulating water and the frequency of high-frequency signals. Then display them on the LCD Screen.
状态参数检测电路对循环水的温度、电导率和高频信号的频率进行实时检测，并通过液晶屏显示。
High frequency surface wave radar is an important tool of the over horizon detection of sea and low-altitude targets.
高频地波雷达是对海面、低空目标进行超视距探测的重要手段。
The principles of detection technique and it's application to detect PD signals at ultra-high-frequency(UHF) are introduced.
介绍了检波原理及其在超高频（UHF）局放检测中的应用。
Test results demonstrate that this system can increase the accuracy of railway frequency-shift signal detection effectively, and has high integration level and reliability.
测试结果表明本系统能有效地提高铁路移频信号检测的准确度，具有高集成度和高可靠性。
Stochastic resonance can only be applied to low-frequency signal or the known high-frequency signal detection. So the applications of the system are severely constrained.
现有的随机共振系统只能应用于低频率信号检测或待测信号频率已知的高频率信号检测，这束缚了系统的实用范围。
This paper analyzes the influence of high-frequency artifacts on the detection of high-contrast micro defects in regions of sharp density transitions inside large workpieces in industrial CT systems.
大型工件内部密度锐变区域的高对比度的微小缺陷的检测是工业CT的主要检测任务之一。
Methods 18 underivatized amino acids were separated using capillary zone electrophoresis and consequently detected with high frequency conductivity detection.
方法：将1 8种游离氨基酸经自由区带电泳分离后，进行高频电导检测。
Finally, error detection and concealment algorithms for low and high frequency coefficients are presented respectively.
最后，对低频和高频系数，分别提出了相应的差错检测和掩盖算法。
Target characteristics and high frequency scattering mechanism are summarized. RCS analysis methods, RCS reduction approaches and low RCS target detection techniques are discussed.
本文概述军用飞行目标对微波雷达的散射特性，讨论了目标的高频散射机理，雷达截面(RCS)分析方法及减缩途径，以及低rcs目标探测技术等。
Target characteristics and high frequency scattering mechanism are summarized. RCS analysis methods, RCS reduction approaches and low RCS target detection techniques are discussed.
本文概述军用飞行目标对微波雷达的散射特性，讨论了目标的高频散射机理，雷达截面(RCS)分析方法及减缩途径，以及低rcs目标探测技术等。
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