Electromyography Data Transmission via Galvanic Coupling Intra-body Communication Link

2021 ◽  
Author(s):  
Anna Vizziello ◽  
Pietro Savazzi ◽  
Giovanni Magenes
Keyword(s):  
Data Transmission ◽  
Communication Link ◽  
Galvanic Coupling

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.

Evaluation of FSO Link Using Array of Photodetectors

2017 ◽  
Vol 38 (3) ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Data Transmission ◽  
Weather Condition ◽  
Simulation Software ◽  
Free Space Optics ◽  
Communication Link ◽  
High Data ◽  
Space Optics ◽  
Channel Bandwidth ◽  
Communication Links

AbstractIn recent years, free-space optics (FSO) communication links have gained importance due to the availability of high data transmission rates and channel bandwidth. Although FSO links have many advantages, it also suffers from many limitations, which degrade the performance of the communication link. In this paper, the performance of an FSO link has been evaluated under fog weather condition as it severely degrades the quality of the received signal. One of the most important techniques to improve the quality of received signal in an FSO link is by using an array of photodetectors at the receiver end. In this paper, the performance evaluation of an FSO link has been performed using an array of photodetectors at the receiver end using OPTISYSTEM simulation software. The performance has been analyzed by evaluating

scholarly journals Investigation of Knee Flexion Angle Influences on Intra-Body Communication’s (IBC) Signal Attenuation

2018 ◽  
Vol 9 (2) ◽  
pp. 424
Author(s):  
I W Ibrahim ◽  
M M M Aruwa ◽  
A.H.A. Razak ◽  
A. Ahmad ◽  
R. N. Khir
Keyword(s):  
Knee Joint ◽  
Human Body ◽  
Data Transmission ◽  
Knee Flexion ◽  
Flexion Angle ◽  
Operating Frequency ◽  
Knee Flexion Angle ◽  
Signal Attenuation ◽  
Galvanic Coupling ◽  
Coupling Analysis

Galvanic coupling method is one of the methods introduced in intra-body communication (IBC). IBC uses human body to as the communication medium for data transmission. In this paper, the investigation focuses on signal attenuation performance across knee joint using the galvanic coupling analysis. The signal attenuation was determined by implementing the galvanic coupling analysis at specific knee flexion angle. The galvanic analysis initiated by deciding the operating frequency in between 40 to 60 MHz in order to analyze the signal attenuation between the knee flexion angles. This paper found that the lowest signal attenuation at the operating frequency was 47.25dB, while the highest one was 52.63dB where the knee flexion angle is 0o and 155o respectively. It was concluded that the signal attenuation decrease with the increasing of knee joint existence at the specific flexion angle. However, a wider experiment must be conducted for various data that will correspond to signal attenuation for various influenced human data characteristics.

scholarly journals A Novel Loss Tolerant Data Transmission Schemes for Airborne Telemetry System of a Long Range Aerospace Vehicle

2022 ◽  
Vol 72 (1) ◽  
pp. 114-121
Author(s):  
Sudarsana Reddy Karnati ◽  
Lakshmi Boppanna ◽  
D. R. Jahagirdar
Keyword(s):  
Long Range ◽  
Data Transmission ◽  
Research Work ◽  
Communication Link ◽  
Telemetry System ◽  
Telemetry Data ◽  
Aerospace Vehicles ◽  
Vehicle Performance ◽  
Redundant Data ◽  
Stage Separation

The on-board telemetry system of an aerospace vehicle sends the vehicle performance parameters to the ground receiving station at all instances of its trajectory. During the course of its trajectory, the communication channel of a long range vehicle, experiences various phenomena such as plume attenuation, stage separation, manoeuvring of a vehicle and RF blackout, causing loss of valuable telemetry data. The loss of communication link is inevitable due to these harsh conditions even when using the space diversity of ground receiving systems. Conventional telemetry systems do not provide redundant data for long range aerospace vehicles. This research work proposes an innovative delay data transmission, frame switchover and multiple frames data transmission schemes to improve the availability of telemetry data at ground receiving stations. The proposed innovative schemes are modelled using VHDL and extensive simulations have been performed to validate the results. The functionally simulated net list has been synthesised with 130 nm ACTEL flash based FPGA and verified on telemetry hardware.

Data transmission with twisted light through a free-space to fiber optical communication link

2016 ◽  
Vol 18 (3) ◽  
pp. 03LT01 ◽  
Author(s):  
Robert Brüning ◽  
Bienvenu Ndagano ◽  
Melanie McLaren ◽  
Siegmund Schröter ◽  
Jens Kobelke ◽  
...  
Keyword(s):  
Optical Communication ◽  
Data Transmission ◽  
Free Space ◽  
Communication Link ◽  
Twisted Light ◽  
Fiber Optical ◽  
Fiber Optical Communication

scholarly journals Real-Time Air-to-Ground Data Communication Technology of Aeroengine Health Management System with Adaptive Rate in the Whole Airspace

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Qiuying Yan ◽  
Wei Li ◽  
Jiacheng Li ◽  
Jie Zhang ◽  
Shengyi Liu ◽  
...  
Keyword(s):  
Mobile Communication ◽  
Data Transmission ◽  
Management System ◽  
Satellite Communication ◽  
Health Management ◽  
Data Communication ◽  
Communication Link ◽  
Communication Distance ◽  
Cellular Mobile ◽  
Cellular Mobile Communication

To overcome the problem of data transmission of the aeroengine health management system, a multilink communication system combining ultrahigh-frequency communication link, 4G cellular mobile communication link, and BeiDou satellite communication link was proposed. This system can realize the functions such as data receiving and sending, data encryption, and resuming transfer from the break point based on multiple links. When the flight altitude is not high, the communication distance is short, so the UHF digital transmission radio communication link is adopted, which is highly efficient and stable. When the communication distance is long, the 4G cellular mobile communication link can ensure both the communication distance and the communication rate. In the area where 4G signal cannot be covered in extreme terrain environment, BeiDou satellite communication link is used for data transmission. Besides, in order to ensure the communication rate of the link, a multilink adaptive switching technology was also developed. The test verified that the system can perform adaptive switching among multiple links, realize air-ground data communication in the whole airspace, and achieve a good communication rate, which has significative value of engineering application.

Electro Optic Methods in Intra-Body Communication System

2013 ◽  
Vol 380-384 ◽  
pp. 3517-3521 ◽  
Author(s):  
Jian Li ◽  
Shuang Zhang ◽  
Yi He Liu
Keyword(s):  
Optical Fiber ◽  
Data Transmission ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Galvanic Coupling ◽  
Fiber Communication ◽  
External Modulation ◽  
Electro Optic ◽  
Modulation Methods

Intra-body communication is proposed by Zimmerman in 1995 and the galvanic coupling has been observed to be the best method for data transmission. With the increasing transmission requirements and the development of optical fiber communication, a high speed system is possible to be designed based on the Electro optic methods. In this paper, the characteristics of the intra-body communication system are introduced. Principles and structures of optic modulation for intra-body communication are reviewed. Internal and external modulation methods are introduced and discussed. A system of the electro optic modulation is recommended and discussed.

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