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Powered exoskeleton technology helps turns dreams of recovering mobility after paralysis into reality. One of the most common problems encountered in the use of powered exoskeletons is the detection of the motion intentions of the user. Many approaches to conquering this problem have been developed using Electromyography (EMG) sensors, Electroencephalography (EEG) sensors, Center of Pressure (COP),...
The suppression of the spectral line is an issue of major interest in the design of compliant Time Hopping Impulse Radio (TH-IR) Ultra-Wide Band (UWB) systems. This issue has been commonly addressed by randomizing the position of each pulse. In practice; it requires the use of very long Pseudo Random (PR) or Pseudo Noise (PN) sequences to approach the spectral line suppression capabilities. This would...
In this paper, the design of a Double Square Loop Frequency Selective Surface (DSL FSS) is presented. The DSL FSS is designed to band-stop 2.4 GHz and 5.5 GHz and to allow all other frequencies to pass into the area of interest. ‘Wireless InSite’ is used to demonstrate wave propagation in modified buildings with FSS to prove the enhancement of capacity. The demonstration is applied to Multiple Input...
This paper presents results of parametric studies in enhancing wireless communication system. An objective of the work has been to create a pass band square mesh-patch array Frequency Selective Surface (FSS) onto waveguides attached on/inside walls to increase productivity and efficiency through enhancing received signal power. Using the innovative model as a part of a wall assures signal strength...
In a realistic environment it is not possible to neglect the significant impact of human body shadowing on the indoor wireless propagation channel. The received power of the obstructed (OBS) path can be attenuated significantly as compared with that of the line of sight (LOS) path, thereby requiring an additional link budget margin as well as battery power. The use of an innovative wall treatment...
This paper reports some of the findings in a project at Loughborough University in the UK. An objective of the work has been to create a pass band square spiral Frequency Selective Surface (FSS) onto waveguides attached on walls to increase productivity and efficiency through enhancing received signal power. The FSS is simulated by Computer Simulation Technology (CST) Microwave Studio (MWS). Remcom...
An objective of the work has been to create a band pass square mesh-patch array Frequency Selective Surface (FSS) wall paper. Modifying the indoor wireless physical propagation environment to increase the coverage of certain communication systems was investigated and demonstrated in this research. General analysis approach for rectangular waveguide with square section is presented. The FSS is analysed...
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