Global ETD Search
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Showing 1 to 8 of 8 for “"Ultrawideband (UWB)"”.
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Ultrawideband Channel Sounding Studies in Outdoor and Outdoor-Indoor Environments
Ultrawideband (UWB) is one of the most promising communication technologies in recent times with the promise of high data rates and spectral reuse. This work analyses the outdoor and outdoor-to-indoor propagating characteristics of the UWB pulse, which can be of the order of a few gigahertz in …
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Simulation and Mathematical Tools for Performance Analysis of Low-Complexity Receivers
… (SDAR), Code Division Multiple Access (CDMA) and UltraWideband (UWB) communications technologies. A graphical-user-interface simulation tool has been developed to predict the link reliability performance of the SDAR services in the continental United States. Feasibility study of receiving both …
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Ultrawideband Indoor Location And Tracking System
… intruder location and tracking system with UltraWideBand (UWB) technology and use data compression and Constant False Alarm Rate (CFAR) techniques to improve the performance of the location system. Reliable and accurate indoor positioning requires a local replacement for GPS systems since …
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Experimental Investigation Of Ultrawideband Wireless Systems: Waveform Generation, Propagation Estimation, And Dispersion Compensation
<p>Ultrawideband (UWB) is an emerging technology for the future high-speed wireless communication systems. Although this technology offers several unique advantages like robustness to fading, large channel capacity and strong anti-jamming ability, there are a number of practical challenges which …
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The Design and Modeling of Ultra-Wideband Position-Location Networks
Impulse-based Ultrawideband (UWB) is a form of signaling which uses streams of pulses of very short duration, typically on the order of a nanosecond. Impulse-based UWB systems possess the ability to fuse accurate position-location with low-data rate communication, and provide covertness for …
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Electromagnetic Time-Reversal Imaging and Tracking Techniques for Inverse Scattering and Wireless Communications
… is known as `superresolution’. Moreover, under ultrawideband (UWB) operation, TR exhibits the distinctive property of `statistical stability’, which makes it an attractive technique for imaging in disordered media whose characteristics are not known deterministically (random media). Over the …
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Channel-coded time-hopping and direct-sequence ultrawideband systems
… for enhancing the achievable performance of UltraWideBand (UWB) systems. We commence by a rudimentary introduction to UWB systems, including a brief historical perspective of the field. Chapters 2 to 4 will then provide the designs of channel coded UWB systems with the aid of EXtrinsic …
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Self-concatenated coding for wireless communication systems
… concept.<br/>Application of SECCCs in both UltraWideBand (UWB) and state-of-the-art video-telephone schemes demonstrated its practical benefits.<br/><br/>In order to further exploit the benefits of the low complexity design offered by SECCCs we explored their application in a distributed …