A noise mitigation scheme is proposed for nonlinear frequency division multiplexing systems. This scheme utilizes channel characteristics to design an olive shape geometry with greater ASE noise and phase noise tolera...
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This project focuses on the design and implementation of a staircase lift system aimed at enhancing accessibility for individuals with mobility impairments. The system integrates various components, including a 3-phas...
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For the application scenarios of ocean surveying, the traditional motion reference unit (MRU) is limited in its ability to directly provide detailed wave characteristics such as the heave and attitude parameters of th...
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Drone navigation is an area of study that is receiving more and more attention. Obstacle detection techniques and autonomous guidance are continuously improving, but some types of obstacles are still very difficult to...
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ISBN:
(纸本)9798350310375
Drone navigation is an area of study that is receiving more and more attention. Obstacle detection techniques and autonomous guidance are continuously improving, but some types of obstacles are still very difficult to detect with current methods. Safety nets used to separate and secure 2 contiguous spaces are indeed very difficult to detect by Lidar and by image processing based on pattern recognition. The method we propose here separates the optical Flow detections to identify the presence of a safety net: i) by using the norm of their vector, ii) by matching them to a regression defining a plane (safety net or wall). Our results show that the proposed method detects a net in front of a wall with very few false positives, thanks to a small displacement (at most 5%). Moreover, the distance estimation between the net and the wall as well as the distance between the net and the drone can be estimated with at most 20% error in the worst cases.
Digit recognition is foundational in pattern recog-nition and machine learning, with applications in document processing and optical character recognition. Current research often targets English digits, overlooking la...
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Some events (as, for instance, a bridge collapse, an underpass closure or a road maintenance intervention) may generate the total or partial unavailability of some elements of urban road networks. Hence, some users ha...
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The subway holds a significant role within the urban public transportation network. Addressing the challenges of subway connectivity has become crucial for enhancing the commuting experience of citizens. This study, f...
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With the intensification of the global energy crisis and environmental pressure, the optimization of energy systems in high energy-consumption parks has become particularly critical. This paper proposes an integrated ...
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Wavelength division multiplexing(WDM) allows optical fiber communication systems to provide data rates and bandwidth in the few terahertz regions. In a WDM- based optical network, wavelength assignment algorithms are ...
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In SOI structures, a thin layer of crystalline silicon (Si) is grown on top of an insulating layer, most often silicon dioxide (SiO2). In particular, the huge refractive index difference between silicon and silicon di...
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