特高频

地下巷道中UHF特高频无线电波的传播

Propagation of the ultrahigh frequency ( UHF ) radio wave in the underground tunnel

在利用该方法测量特高频率时是非常困难的，因为对高频进行倍频或分频是十分困难的，从而也就造成了特高频测量的主要困难。

This method is not effective for ultrahigh frequency measurement , because it is difficult to multiply or divide a ultrahigh frequency .

特高频法检测GIS局部放电的试验研究

Experimental Research of UHF Method for the Detection of Partial Discharge in GIS

一种用于GIS局部放电检测的新型特高频传感器

A new ultra high freqency sensor for detection of partial discharge for GIS

GIS中局部放电特高频信号采集系统

UHF Signal Extraction for GIS Partial Discharge Detection

特高频无线电工程学大功率UPS工频机和高频机性能对比

A Comparison of High Power UPS Working-frequency Machine and High-frequency Machine

从而阐明了特高频输出信号能量与原始放电脉冲的关系，为进一步探讨GIS放电量特高频标定打下基础。

According to UHF output signals , original PD pulse can be estimated , which contributes to marking GIS partial discharge .

高稳定特高频（UHF）锁相振荡源研究

The Study of Ultra-high Frequency High Stabling Phase-locked Oscillator

局部放电信号用超宽带（UWB）脉冲电流、脉冲电流和特高频（UHF）联合检测系统获取。

The partial discharge signals were gathered by a united detective system of UWB method , pulse current method and UHF method .

介绍了特高频法检测GIS内局部放电的模拟试验方法。

This paper presents a simulating experiment method and the experimental results about the ultra high frequency ( UHF ) method for detection of partial discharge in gas insulated substation ( GIS ) .

研究结果表明：基于EWC阈值法的复小波变换能够有效地抑制GIS特高频PD信号中的周期性窄带干扰。

The results show that the EWC threshold method of complex wavelet transform can effectively suppress the periodic narrowband interference from GIS UHF PD signals .

该放大器的工作频段为特高频（UHF），输出功率为250W。

The output power can reach to 250 W within the band of Ultra High Frequency ( UHF ) .

UHF波段是指频率为300-3000MHz的特高频无线电波，在现代无线通信系统中，该波段有着极其广泛的应用。

UHF band , which refers to the frequency of300 ~ 3000MHz ultra high frequency radio wave , is widely used in modern wireless communication system .

研制了一种用于GIS局部放电检测的宽带特高频外部传感器，其有效带宽为300～3000MHz。

This paper designed and developed a new UHF sensor , namely plane spiral antenna , with effective bandwidth of300 ~ 3000MHz .

研究了在GIS体外进行局部放电特高频传感的技术，开发了一种拥有可移动传感器的GIS局部放电在线检测定位仪器，并建立了相应的检测和定位方法。

Investigation are performed to sense the UHF signals from the outside of GIS . Based on the external UHF sensing technique , a PD detection device of GIS with movable sensors is developed , and its measuring and locating pro-cedures was established .

获取局部放电（PD）特征信息是局部放电特高频（UHF）检测的关键问题之一，研究UHF信号与PD脉冲电流之间的关系有助于绝缘缺陷的诊断。

Obtaining the partial discharge ( PD ) characteristic is one of the key issues of PD ultra-high frequency ( UHF ) detection . To study the relation between PD pulse current and its UHF signal is helpful to the insulation diagnosis .

通过常规局部放电测试与UHF特高频局部放电测量结果对比，可估计UHF信号的放电量，提高UHF特高频局部放电测试在工程中的实用性。

The sort of PD is classified by the PD characteristic research . Then Discharge level of UHF signal is estimated based on its sort and the conventional PD measurement . The practicality of UHF detection is development in the engineering .

然后基于提出的电路结构和算法，给出了特高频无源电子标签电源产生电路的设计实例.（5）、消极不一致型（passive-inconsistent）。

Finally , using the novel architecture and algorithm , an example of power generation circuit applied in ultra high frequency ( UHF ) passive transponder integrated circuit ( IC ) is given . ( e ), passive - inconsistent .

电力变压器局部放电信号特高频特性的试验研究

Experimental Study on UHF Characteristic of PD Signals in Transformer Oil

特高频在电力设备局部放电在线监测中的应用

Applying UHF to partial discharge on-line monitoring of electric power apparatus

特高频同轴馈电共轴天线阵辐射场的计算

Calculations of radiation field for coaxially fed colinear arrays in UHF

采用特高频检测技术的局部放电源定位方法

Location of PD by Searching in Space Using UHF Method

变压器局放特高频检测中检测频率和带宽的影响

Influences of center frequency and bandwidth on UHF PD detection for transformers

变容二极管特高频调谐器调频式谐振特高压试验电源拓扑结构

Topological Structures of UHV Frequency Tuned Resonant Test Power Supply

这一选取较高中频的方案也适于特高频频段。

The proposal selecting higher medium frequency is suitable for UHF band .

局部放电特高频检测抗干扰与诊断技术的研究

Study on Interferences Elimination and Fault Diagnostic Techniques for UHF Partial Discharge Detection

氙激光器四极特高频放电激励的研究

Investigation of Quadrupole UHF Discharge Excitation for Xe Laser

FM4016UL/FM2516UL系列特高频无线电台编频的方法

The method of selecting frequency for fm4016ul / fm2156ul family 's UHF radios

特高频保护在城网短线群中的应用

Application of UHF Protection on Short Transmission Lines of Urban Power Network HOMOMORPH-GROUP

巷道内粉尘对特高频电磁波传播特性的影响

Influence of mine dust on propagation characteristic of UHF electromagnetic wave in tunnel