RF communication link for Moon Impact Probe in the Chandrayaan-1 mission

2011 ◽  
Author(s):  
Sherly Joy ◽  
R Nivin ◽  
K S Smitha ◽  
Diana Mohan
Keyword(s):  
Communication Link ◽  
Rf Communication ◽  
Impact Probe

scholarly journals A Survey on Recent Work in Hybrid FSO/RF Communication Link

2019 ◽  
Vol 9 (1) ◽  
pp. 25-32
Author(s):  
Navdeep Kaur et al., Navdeep Kaur et al., ◽  
Keyword(s):  
Recent Work ◽  
Communication Link ◽  
Rf Communication

Weather effects on hybrid FSO/RF communication link

2009 ◽  
Vol 27 (9) ◽  
pp. 1687-1697 ◽  
Author(s):  
Farukh Nadeem ◽  
Vaclav Kvicera ◽  
Muhammad Awan ◽  
Erich Leitgeb ◽  
Sajid Muhammad ◽  
...  
Keyword(s):  
Communication Link ◽  
Weather Effects ◽  
Rf Communication

Reliability of the Communication Link Consisting of Primary and Reserve Channels

2003 ◽  
Vol 60 (10-12) ◽  
pp. 51-58
Author(s):  
I.P. Panfilov ◽  
A.A. Scopa
Keyword(s):  
Communication Link

Analysis of Inter-Satellite Optical Wireless Communication System

2017 ◽  
Vol 7 (10) ◽  
pp. 10
Author(s):  
Rajbir Singh
Keyword(s):  
Wireless Communication ◽  
Optical Networks ◽  
Data Transmission ◽  
High Speed ◽  
Open Space ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
High Speed Data ◽  
Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

Conservation and Preservation of Nature Reserves, Monuments andSpecial Architectural or Historic Interest in Nigeria: Towards Promotion of Sustainable Cultural Tourism

2015 ◽  
Vol 3 (2) ◽  
pp. 201-218
Author(s):  
Francis Chuma Osefoh
Keyword(s):  
Cultural Tourism ◽  
Nature Reserves ◽  
Communication Link ◽  
Built Environments ◽  
Tourist Attraction ◽  
The Past ◽  
Personal Experiences ◽  
Historical Heritage ◽  
Developed Nations

Some of the renowned world tourism countries have special peculiarities in character in terms of their nature reserves and built environments; that made them stand out for their attractions and visits. These qualities range from conservation and preservation of nature reserves, built environments- epoch architectural supports over the years; historical heritage; political; religious; socio-economic; cultural; and  high technology that enhance culture. The virtues of multi- ethnic groups and multi- cultural nature gave Nigeria a rich cultural heritage, and she is blessed with natural wonders, unique wildlife, and a very favorable climate. More often than not less attention and importance are placed over the nature reserves and built environments to the detriment of tourism in lieu of other sectors. Summarily the country lacks the culture of conservation and preservation of her abundant resources to promote cultural tourism. Case study strategy was applied in the research tours with reports of personal experiences, documentaries and analyses of sites visited in Europe and Nigeria were highlighted with references to their attributes in terms of structures and features that made up the sites as relate to culture and attraction.The task in keeping rural, city landscapes and nature reserves alive stands out as the secret of communication link from the past to present and the future; which tourism developed nations reap as benefits for tourist attraction.

Fast Recovery from Topology Changes and Communication Link Failures

2010 ◽  
Vol 5 (2) ◽  
pp. 50-57
Author(s):  
S. Vasundra ◽  
B. Sathyanarayana
Keyword(s):  
Communication Link ◽  
Fast Recovery ◽  
Link Failures ◽  
Topology Changes

Localization of a Complex Failure by Combining ATPG and Customer-Oriented Application Testing

2013 ◽  
Author(s):  
Kai Wang ◽  
Rhys Weaver ◽  
David Johnson
Keyword(s):  
Failure Analysis ◽  
Semiconductor Device ◽  
Digital Design ◽  
Radio Communication ◽  
Communication Failure ◽  
Systemic Analysis ◽  
Rf Communication ◽  
System On A Chip ◽  
Electrical Diagnostics ◽  
Failure Location

Abstract A systemic analysis was chosen to evaluate a real case Bluetooth (BT) radio failure in the aspects of RF communication, digital design, firmware, application software, semiconductor device physics and processing, and failure analysis. This paper explores the range of testing, including customer application testing, required to confirm and localize a BT RF communication failure. It shows that the radio communication failure was not, as expected, caused by faulty radio hardware; it was rather linked to problematic encryption hardware at the assistance of the Synergy BT to mobile application. The paper also explores that the digital fault can only be detected by the timing sensitive transition fault scan patterns and how to obtain the physical failure location. Thus, the combination of ATPG and application testing provides a consistency between electrical diagnostics which yields a higher success rate at subsequent physical failure analysis of complex modern RF System on a Chip.

Experiment Protocol Boosters Over Inmarsat-ISDN Communication Link

2003 ◽  
Author(s):  
Brian B. Luu ◽  
Christopher M. Sadler
Keyword(s):  
Communication Link

scholarly journals A Cost-Effective Decentralized Control for AC-Stacked Photovoltaic Inverters

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2262 ◽  
Author(s):  
Hua Han ◽  
Chao Luo ◽  
Xiaochao Hou ◽  
Mei Su ◽  
Wenbin Yuan ◽  
...  
Keyword(s):  
Decentralized Control ◽  
Cost Effective ◽  
Current Control ◽  
Control Mode ◽  
Communication Link ◽  
Grid Voltage ◽  
Point Tracking ◽  
Pv Inverter ◽  
Communication Links ◽  
Voltage Phase

For an AC-stacked photovoltaic (PV) inverter system with N cascaded inverters, existing control methods require at least N communication links to acquire the grid synchronization signal. In this paper, a novel decentralized control is proposed. For N inverters, only one inverter nearest the point of common coupling (PCC) needs a communication link to acquire the grid voltage phase and all other N − 1 inverters use only local measured information to achieved fully decentralized local control. Specifically, one inverter with a communication link utilizes the grid voltage phase and adopts current control mode to achieve a required power factor (PF). All other inverters need only local information without communication links and adopt voltage control mode to achieve maximum power point tracking (MPPT) and self-synchronization with grid voltage. Compared with existing methods, the communication link and complexity is greatly reduced, thus improved reliability and reduced communication costs are achieved. The effectiveness of the proposed control is verified by simulation tests.

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