The estimation of electrical harmonic parameters by using the quasi-synchronization and interpolated FFT are introduced.
介绍了加窗插值法和准同步法在电力系统谐波参数估计中的应用。
In the paper,a mathematical expression for errors in measuring effective values of AC voltage and current,and power with multiple averaging under quasi-synchronization is presented and proven.
在准同步的框架内,首次提出并证明多重平均后电压、电流有效值和功率测量误差的数学表达式,根据该表达式可以计算出有限次平均后结果的误差大小,或者在确定的准确度下给出多少重平均次数的估计。
The measuring error, which is caused by the sampling error or electrical-net frequency drift error,can be overcomed, to a certain extent,by the measurment techniques with quasi-synchronization.
由采样误差或者电网频率发生漂移导致的测量误差可以采用准同步方法提高精度。
The technique of quasi-synchronous window and its application in signal distortion measurement are introduced in this paper.
主要介绍了准同步窗方法及其在失真度测量中的应用情况。
Performance Study of Synchronous and Quasi-Synchronous MC-CDMA Systems Based on the Walsh Sequence;
基于WALSH序列的同步及准同步MC-CDMA系统性能研究
So we consider establishing quasi-synchronous system.
理想同步CDMA系统具有很高的容量,然而在卫星移动环境下很难实现,一般采用准同步系统。
In this paper, the performance of quasi-synchronous MC-DS-CDMA communication system employing GO sequences is investigated for AWCN channel.
本文分析了在AWGN信道下基于广义正交GO序列扩频的上行准同步MC-DS-CDHA系统。
They are suitable for the QS-CDMA system as spreading sequences.
该类方法可通过序列和矩阵的任意选取,统一地构造二元、三元、多相、复数的ZCZ(LCZ)序列集,且构造简单、形式统一,通用性更好,适用于准同步CDMA(QS-CDMA)系统。
The LAS sequence which is a ZCZ(Zero Correlation Zone)sequence can make the performance of QS-CDMA system closer to SCDMA.
在准同步CDMA系统中,到达接收端的各用户信号存在一定的相对时延,这个时延应该控制在一定范围之内,这个范围的大小,就决定了系统实现的复杂程度,这也是准同步CDMA区别于同步CDMA的地方所在,尽量使准同步系统的性能更加接近于同步系统。
Application of Quadriphase ZCZ Sequence in QS-CDMA System;
同时提出了一种扩展四相零相关区序列长度的方法;并在高斯白噪声(AWGN)信道条件下,对QPSK调制的基于四相零相关区序列的准同步CDMA系统进行了仿真。
Performance Study of Synchronous and Quasi-Synchronous MC-CDMA Systems Based on the Walsh Sequence;
基于WALSH序列的同步及准同步MC-CDMA系统性能研究
A Comparative Study of PDH、SDH and SONET Technologies
准同步数字系列、同步数字系列、同步光纤网的技术比较及互通
Performance simulation of quasi-synchronous CDMA systems
准同步CDMA系统的性能仿真研究
Quasi-synchronous sampling technology and its DSP realization
准同步采样技术及其DSP实现方法
Research of Microcomputer Protection and Automatic Approximate Synchronous Switching of Ship Power Station;
船舶电站微机保护及自动准同步并车系统研究
Study on QS-CDMA Systems Based on Zero Correlation Zone Sequence;
基于零相关区序列的准同步CDMA系统的研究
Performance Analysis of Quasi-Synchronous MC-DS-CDMA System Employing GO Sequence;
基于GO序列的准同步MC-DS-CDMA系统性能研究
Optimized Study of LS and LA Sequence Set in the QS-CDMA System;
LS和LA序列集在准同步CDMA系统中的优化研究
The Design of the ZCZ Sequence Pair Set in the Quasi-Synchronous CDMA System;
准同步CDMA系统中零相关区序列偶集合的设计
The Study on Performance of QS-CDMA System Based on LAS CODE
基于LAS序列的准同步CDMA系统性能的研究
synchronous optical bombsight
同步光学轰炸瞄准具
SDH/SONET New Standard and Technology for Measurement
同步数字通信网络新标准和测量技术
The Study of Synchronization Algorithm for OFDM System Based on IEEE802.11a Standard;
基于IEEE802.11a标准的OFDM系统同步算法研究
A Study of Timing Synchronization Techniques Based on IEEE 802.16e Standard;
基于IEEE 802.16e标准的定时同步技术研究
Research on Timing Synchronization Techniques Based on IEEE 802.16e Standard;
基于IEEE802.16e标准定时同步技术研究
Research on the profit-improvement of enterprises while adopting Management Standard of ISO14000;
ISO14000管理标准与企业效益同步发展研究
Synchroclock Implementation of Multiple Calibration Algorithm Based on FPGA
基于FPGA的多通道校准算法同步实现
A study of frame synchronization algorithm based on IEEE 802.16 standard
基于IEEE 802.16标准的帧同步算法研究