Single Carrier Channel Estimation with Improved Efficiency of Data Exploitation 一种提高数据利用效率的单载波信道估计方法
Study on Carrier Protection Channel for 330 kV Lines 330kV线路高频保护通道问题的研究
The carrier channel is an important component of high frequency protection, and whether it is normal related to the protection action correct or not. 高频通道作为高频保护的重要组成部分,其是否正常关系到保护能否正确动作。
Malfunction treatment and analysis of carrier wave channel of power transmission line 电力线载波通道故障处理分析
Computer-Aided Analysis of Power Line Carrier Channel 电力线载波通道的计算机辅助分析
Effect of Installation Site of High-voltage Reactor on Carrier Wave Channel 高压电抗器安装位置对载波通道的影响
A kind of high reliable communication method based on distributed micro-controller system and with electric power transmission line as carrier channel is introduce. The design of the system is given. 介绍一种以电力线作为载波信道的分布式单片机系统通信方式以及该系统的设计方法。
About carrier channel, some problem are very distinct, such as quality and using of transceiver, testing and adjusting of channel parameter. 在专用载波通道中,收发信机质量及使用、通道参数测试及调整问题比较突出;
The study on three-phase adaptive reclosure based on carrier channel and signal transmission 基于高频保护通道信号的三相自适应重合闸方法
An investigation on carrier channel characteristics of AC lighting mains 交流照明线载波通道特性的研究
This paper brings forward a whole new scheme of three-phase adaptive reclosure, which uses the carrier channel and its signals to distinguish transient faults and permanent faults. 提出了一种用于区分输电线路瞬时性故障和永久性故障的新方法:利用高频通道及其信号区分瞬时性故障和永久性故障,从而实现三相自适应重合闸。
Defense of Mistakenly Electrifying Power Line with Line Grounded Based on Carrier Channel 基于载波通道的线路带接地误送电预防
Eliminating the safety trouble of powerline carrier channel junction equipment 消除电力线载波通道结合设备的安全隐患
When adopting the blocking scheme in DLP protection equipment, ignoring the effect of high frequency protections ′ s command transmission time in carrier wave channel led to the high frequency protection ′ s maloperation on the fault out of protection region. 在采用DLP保护装置Blocking方案时,由于对其高频保护配合关系研究不够、忽视了高频保护命令载波通道传输时间的影响,导致了区外故障时高频保护误动。
Research of Automobile Power Line Carrier Communication Channel Characteristic 汽车电力线载波通信信道特性研究
Analysis and Designing of the Alarming Net System Based on the Low-voltage Power Line Carrier Channel 基于电力线载波信道的报警网络系统分析与设计
Analysis in effects to high frequency protection command transmission time in carrier wave channel 浅析高频保护命令载波通道传输时间的影响
Inspection of the powerline carrier channel 电力线载波通道的检查
Study and Development of the Level Oscillator of High-frequency Carrier Channel Testing 高频载波通道测试电平振荡器的研究与开发
As a result, the quality of carrier channel declined. 造成电路质量和运行可靠性下降。
Presents the possible ways to improve BER performance of power line carrier channel for transmitting those signals. 提出在电力线载波通道中传输安自(保护)信号降低误码率的可能方式。
With the analysis of traditional data transmitting method in power line carrier channel, this paper introduces a new transmission device which adopts octal quadrature amplitude modulation instead of frequency shift keying to achieve the requirement of multi-purpose 1 200 bps data transmitting. 通过对传统载波数据传输方式的分析,介绍一种新型电力线载波数据传输装置,采用八进制正交振幅调制替代频移键控调制,实现上音频复用传输1200bps数据。
Study on the fault detecting in carrier protection channel 高频保护通道故障监测方法的研究
Factors influencing performance of radio frequency carrier channel and corresponding 影响高频载波通道水平的几个因素及解决方法
With the measuring system designed by the author, many experiments are made to investigate the electrical characteristics of power line used as high frequency carrier communication channel including the characteristics of input impedance and signal attenuation as well as noise. 文中采用自行设计和研制的测量系统对将低压电力线用做高频通信网络时的电气特性,包括输入阻抗特性、信号衰减特性和系统的噪声特性等,进行了大量的试验研究。
Analysis of time delay for carrier channel and Study on equalizer circuit 铁路载波电路群时延特性分析与均衡网络研究
However, the mechanical device which constitute the carrier channel will fluctuate greatly due to the difference between batch, temperature or frequency. 但组成载频下行通道的器件会因为器件批次、温度、频率等因素波动很大,增益也会因为信号峰均比的不同而变化。
The composition is among the unity the language, thinking and humanity. It is a good carrier and channel to cultivate the students 'thinking ability. 作文是语言、思维和人文三者的统是培养学生思维能力的一个很好的载体和渠道。
At the transmitting end, the signal becomes the binary bits into the sub-carrier modulation after a logic OR gate; At the receiving end, in order to obtain the desired signal, we will put the corresponding carrier channel signal in the procession of logical AND operation. 在发射端,利用逻辑或门使得信号在进入副载波调制前变成二进制比特信息;在接收端,使用逻辑与门对相应载波信道信号进行处理,得到所需信号。
By calculating the total probability to determine the relevance of whether the carrier channel, if the carrier is illustrated channel is occupied, otherwise that the channel is idle. 根据计算其总的相关性概率来判断信道中是否有载波,若有载波就说明信道正在被占用,否则就认为信道是空闲的。