ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Social Sciences
Economy
Research
Technology
Pure sciences
Public health
Architecture and Urbanism
Biology
Agronomy and forestry
all records (74)

Languages
English
Portuguese
Spanish
French
German

Countries
Indonesia
Brazil
USA
Ukraine
South Africa
Spain
Switzerland
Cuba
Poland
Chile
all records (80)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
166.638  Articles
1 of 16.665 pages  |  10  records  |  more records»
The goal of 6G communication networks requires higher transmission speeds, tremendous data processing, and low-latency communication. Orthogonal frequency-division multiplexing (OFDM), which is widely utilized in 5G communication systems, may be a viable ... see more

Context. Traditionally a large number of pilot carriers are utilized to acquire channel state information in OFDM based systems.A larger number of pilot carriers gives better channel state estimation but leads to lower spectrum efficiency of the system.Ob... see more

In this paper, the optimality of Compressive Sensing based Least Square (LS-CS) and Compressive Sensing based Minimum Mean Square (MMSE-CS) channel estimation algorithms in Multi Input Multi Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) ... see more

The work is devoted to research in Mobile Station (MS) positioning techniques having opportunity and perspective of using in the next generation communication networks, particularly in cellular networks. Direction of Arrival (DOA) estimation is necessary ... see more

Two simple, rapid, accurate and precise spectrophotometric methods have been developed for simultaneous estimation of Nimorazole and Ofloxacin from tablet dosage form. Method ? involves formation of ‘simultaneous equations’ at 304 nm (? max of Nimorazole)... see more

Power grids are insufficiently equipped with means of monitoring of operating parameters. The infrastructure of commercial power consumption accounting systems is the most developed. However, power consumption information is stored in the aggregated form.... see more

This paper proposes an adaptive phasor estimation algorithm based on a least square method that can suppress the adverse effect of an exponentially decreasing DC offset component in a phasor estimation process. The proposed algorithm is composed of three ... see more

The unknown mutual coupling effect between antennas significantly degrades the target localization performance in the bistatic multiple-input multiple-output (MIMO) radar. In this paper, the joint estimation problem for the direction of departure (DOD) an... see more

Abstract. Formulation of the problem. Predicting the mechanical properties of structural carbon steels is of great scientific and practical importance. Along with the physical-mechanical methods of evaluating the properties of steels, mathematical methods... see more

1 of 16.665 pages  |  10  records  |  more records»