Results 231 to 240 of about 2,927,893 (288)

Power variations of wireless communication systems

Bioelectromagnetics, 2010
AbstractThe use of wireless digital communication devices like GSM, WCDMA, HSPA, DECT, and WiFi changes the exposure of electromagnetic waves toward the user. Concentrating on the power variations on a slow and fast time scale, these new systems are discussed. Experimental results for both uplink and downlink are included for a sample of systems.
Andersen, Jørgen Bach, Mogensen, Preben, Pedersen, Gert Frølund   +2 more
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A power company communication system

Electrical Engineering, 1935
By interconnecting and coordinating its private communication facilities with the commercial telephone system, the Tennessee Electric Power Company is building up a comprehensive communication system for the use of all departments of the company. These improved communication facilities are described briefly in this paper.
E. E. George, O. J. Huie
openaire   +1 more source

High power communication satellites power systems study

AIP Conference Proceedings, 1995
This paper discusses a planned study to evaluate the commercial attractiveness of high power communication satellites and assesses the attributes of both conventional photovoltaic and reactor power systems. These high power satellites can play a vital role in assuring availability of universally accessible, wide bandwidth communications, for high ...
Allan T. Josloff, Jerry R. Peterson
openaire   +1 more source

Power company microwave communications system

Electrical Engineering, 1956
SOUTHERN COLORADO POWER COMPANY'S transmission system consists of 115-kv lines between its plants at Canon City, Pueblo, Rocky Ford (via La Junta substation), and the Colorado Springs municipal system. These lines all terminate at West Substation located 5 miles northwest of Pueblo.
G. D. Perry, Eugene Langone
openaire   +1 more source

Low power wireless communication system

2023
Zielsetzung dieser Diplomarbeit ist die Entwicklung eines programmierbaren drahtlosen Übertragungsmoduls für den Einsatz in Laboren. Das Modul muss bestimmten Auswahlkriterien gerecht werden. Die Auswahlkriterien sind geringe Kosten, Verfügbarkeit, Erweiterbarkeit, Störfestigkeit, Übertragungssicherheit, Zuverlässigkeit und Energieeffizienz.
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Low power consumption communication systems

[1991] IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Conference Proceedings, 2002
The authors reduced power consumption by considering the system at all levels of design. In the area of overall implementation, the authors reduced the chip-to-chip connections by utilizing logic gates with the smallest area and further by using a technique known as high-density interconnect.
M. Lowy, C.-Y. Chin, J.J. Tiemann
openaire   +1 more source

Communication system using photovoltaic power

Energy Conversion and Management, 2000
Abstract An alternative photovoltaic powered communication system is proposed to replace the conventional system of loading and unloading signals on 400 kV transmission lines using expensive current transformers. A battery charge–discharge controller from photovoltaic sources is described, which operates from a 12 V array to power VHF or optical ...
A.K. Mukerjee, Vinay Gupta
openaire   +1 more source

Microwave Power Amplifiers for Satellite Communication Systems

2007 International Conference on Microwave and Millimeter Wave Technology, 2007
This paper provides a short review of radio frequency/microwave power amplifiers (PAs) and their critical role in a modern satellite communication system.
Raghuvir Tomar, Prakash Bhartia
openaire   +1 more source

Power systems communication and modularity

2010 Record of Conference Papers Industry Applications Society 57th Annual Petroleum and Chemical Industry Conference (PCIC), 2010
On shore oil and gas power systems networks are the heart of any exploration, drilling, transportation, and refining operation. With increased demand for product and project schedules increasingly shortened, new methods for maximizing uptime and project expediency have become necessary. In remote locations where contract and commissioning resources are
C Benisch, A T Davies, T Large, R McRae
openaire   +1 more source