scholarly journals An Improved Algorithm for a High Speed Distance Relay Using Walsh Functions.(Dept.E)

2021 ◽  
Vol 8 (1) ◽  
pp. 38-52
Author(s):  
Gabr Abdel-Sallam ◽  
Fayez Areed
Keyword(s):  
High Speed ◽  
Walsh Functions ◽  
Distance Relay ◽  
Improved Algorithm

DWMH: An Improved Algorithm Based on WM for Large-Scale Pattern Set

2013 ◽  
Vol 765-767 ◽  
pp. 963-967
Author(s):  
Xiao Ning Xu ◽  
Ai Ping Li ◽  
Jun Xing Zhu
Keyword(s):  
High Speed ◽  
Large Scale ◽  
String Matching ◽  
Hash Table ◽  
Matching Algorithm ◽  
Set Size ◽  
Security Applications ◽  
Network Bandwidth ◽  
Key Technologies ◽  
Improved Algorithm

String matching algorithm is one of the key technologies in numerous network security applications and systems. Nowadays, the increasing network bandwidth and pattern set size both call for high speed string matching algorithm for large-scale pattern set. An improved algorithm based on WM algorithm for large-scale pattern set is proposed in this paper. The presented multiple pattern string matching algorithm, DWMH, which we call in brief, combines the idea of Horspool algorithm with WM algorithm and applies the method of double hash to revise WMs HASH table to achieve better performance. Our extensive experiments demonstrated that DWMH algorithm is more efficient than WM algorithm, particularly when the size of pattern set becomes large-scale.

Design and implementation of a new neural network-based high speed distance relay

2008 ◽  
Vol 18 (4) ◽  
pp. 364-384 ◽  
Author(s):  
M. Sanaye-Pasand ◽  
H. Khorashadi-Zadeh
Keyword(s):  
Neural Network ◽  
High Speed ◽  
Distance Relay ◽  
Design And Implementation

scholarly journals Distance Relay Using High Speed Sampling Technology

1994 ◽  
Vol 114 (7-8) ◽  
pp. 701-707
Author(s):  
Eijirou Ibaragi ◽  
Masanori Toi
Keyword(s):  
High Speed ◽  
Distance Relay ◽  
High Speed Sampling

An Improved Algorithm Based on Optimized PTS in MIMO-OFDM System

2013 ◽  
Vol 765-767 ◽  
pp. 2801-2804
Author(s):  
Ya Jing Wang ◽  
Ya Zhen Li ◽  
Li Qun Huang
Keyword(s):  
Spectral Efficiency ◽  
Communication System ◽  
High Speed ◽  
Fourth Generation ◽  
Ofdm System ◽  
Broadband Wireless ◽  
High Spectral Efficiency ◽  
Mimo Ofdm ◽  
Simulation Results ◽  
Improved Algorithm

The fourth generation mobile communication system is a high-speed broadband wireless communication system, it needs MIMO and OFDM technology which have high spectral efficiency and suitable for a multi-path fading channel. Because the MIMO-OFDM system is still an multi-carrier modulation system, the main drawback is the high PAPR value. This paper proposed an improved algorithm based on optimized PTS to reduce PAPR in STBC MIMO-OFDM system. The simulation results show that the improved algorithm can effectively reduce the PAPR value and do not increase the amount of computation in STBC MIMO-OFDM system.

Improving OFDM Carrier Frequency Synchronization Using Cyclic Prefix

2013 ◽  
Vol 411-414 ◽  
pp. 779-783
Author(s):  
Ju Peng Zhang ◽  
Ming Jiang Wang
Keyword(s):  
Carrier Frequency ◽  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Multipath Fading ◽  
Cyclic Prefix ◽  
Packet Transmission ◽  
Frequency Synchronization ◽  
Carrier Frequency Synchronization ◽  
Improved Algorithm

Orthogonal Frequency Division Multiplexing (OFDM) is the key technology of high speed communication systems which are widely used today. Small carrier frequency offset can make OFDM system performance fell sharply. So it needs very effective carrier frequency synchronization to make sure that the system works perfect. Seen from a large number of simulations, typical algorithm requires strict symbol timing. According to this characteristic, we proposed an improved carrier frequency synchronization algorithm using cyclic prefix. The improved algorithm can achieve better performance than typical algorithm in multipath fading channel. The precision of the improved algorithm under the same Signal Noise Ratio (SNR) is about 3 orders of magnitude higher than typical algorithm. We found that improved algorithm has more excellent performance in burst packet transmission mode.

High-Speed and High-Resistance-Tolerance Fault Component Ground Distance Relay for UHV Double-Circuit Transmission Line

2013 ◽  
Vol 13 (12) ◽  
pp. 2203-2207
Author(s):  
DI Jian ◽  
HOU Yang-Jun ◽  
Chen Tian-Ying
Keyword(s):  
Transmission Line ◽  
High Resistance ◽  
High Speed ◽  
Distance Relay ◽  
Ground Distance

New high speed distance relay with impedance reactance characteristic

1932 ◽  
Vol 51 (1) ◽  
pp. 39-39
Author(s):  
S. L. Goldsborough ◽  
W. A. Lewis
Keyword(s):  
High Speed ◽  
Distance Relay
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