0000000000132251

AUTHOR

Baltasar Beferull Lozano

showing 4 related works from this author

Centre of Intelligent Signal Processing and Wireless Networks

Machine learning, in-network signal processing and artificial intelligence for wireless networks.

PE6
researchGroup

Phase-noise Impact on the Performance of mmWave-radars

2019

The impact of phase noise in Frequency Modulated Continuous Wave (FMCW) millimeter-wave (mmWave) radars is investigated in this paper. A FMCW signal is transmitted from the radar, reflected off a moving object and processed at a receiver in the radar. The impact of random phase noise/jitter on the performance parameters of estimated distance, speed and angle of arrival of an object is studied. Our studies show that there exists a threshold at about fifteen percent of the period of the carrier frequency, over which errors substantially manifest in the estimations. Distance estimation is less affected than speed and angle, which rely directly on the phase information for the estimations. Angl…

020301 aerospace & aeronauticsComputer scienceAcousticsPhase (waves)020206 networking & telecommunications02 engineering and technologySignallaw.inventionNoise0203 mechanical engineeringlawAngle of arrivalPhase noise0202 electrical engineering electronic engineering information engineeringContinuous waveRadarJitter2019 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
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Autonomous Mooring towards Autonomous Maritime Navigation and Offshore Operations

2020

Bollard is a vital component of mooring system. It is the anchor point for mooring ropes to be fixed in order to secure the vessel or ship. An algorithm that translates the segmented mask of bollard output from masked R-CNN along with bounding box and associated class probability to its corresponding edge coordinate and finally to the single reference point for efficient detection and classification of bollard towards autonomous mooring is presented. At first stage, Mask R-CNN framework is trained with custom built bollard. The model obtained from the training is inferred with real data resulting in instance segment of bollard. The segmented mask obtained contains relatively large amount of…

Point of interestbusiness.industryComputer science020209 energy02 engineering and technologyMooringMinimum bounding box0202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processingPoint (geometry)Submarine pipelineComputer visionArtificial intelligenceEnhanced Data Rates for GSM EvolutionbusinessReduction (mathematics)Pose2020 15th IEEE Conference on Industrial Electronics and Applications (ICIEA)
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Long-range & Self-powered IoT Devices for Agriculture & Aquaponics Based on Multi-hop Topology

2019

This article presents the prototype design and testing of a long-range, self-powered IoT devices for use in precision agriculture and aquaponics. The devices are designed using the ultra-low power nRF52840 microcontroller with Bluetooth 5 support and ambient energy harvesting. A power of 942µW is harvested in an indoor environment. The devices are therefore suitable for both indoor and outdoor use, as natural sunlight will provide far more energy compared to artificial indoor lights. A line-of-sight range of up to 1.8km is achieved with the use of coded transmissions. However, the coverage area and range can be extended significantly by deploying the devices in multi-hop network topology. T…

Sunlight021110 strategic defence & security studiesComputer sciencebusiness.industryReal-time computing0211 other engineering and technologies020206 networking & telecommunicationsCloud computing02 engineering and technologyNetwork topologylaw.inventionBluetoothlawAgriculture0202 electrical engineering electronic engineering information engineeringPrecision agriculturebusinessEnergy harvestingWireless sensor networkEfficient energy use2019 IEEE 5th World Forum on Internet of Things (WF-IoT)
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