Papers by Angel Arcia
Acta Astronautica
Global Navigation Satellite Systems (GNSS) are not only used in terrestrial applications, but als... more Global Navigation Satellite Systems (GNSS) are not only used in terrestrial applications, but also in Low-Earth orbit satellites and in higher altitude missions. NASA’s Magnetospheric Multiscale (MMS) mission has demonstrated the capabilities of existing GNSS systems to provide positioning, navigation, and timing (PNT) services in the Cis-lunar space. The resurgence in plans by national space agencies for Lunar exploration presents a need for accurate, precise, and reliable navigation systems to ensure the safety and success of future missions. Moreover, the increased amount of Moon missions over recent years, shows the requirement of navigation capabilities for Low Lunar orbiters, Moon landers, Moon rovers, and manned missions. The success of Global Navigation Satellite Systems (GNSS) on Earth, presents an opportunity for the study of a potential design requirements and expected performance of a Lunar GNSS constellation. We have approached this problem through the methodology of multi-objective optimization; numerically simulating the orbits, and using the Position Dilution of Precision (PDoP) as the figure of merit to optimize a set of 200 constellation designs and improving them gradually over 1864 generations. Over 12,000 unique constellation designs were generated with the best 10 constellations presented in this paper for consideration and further study. Compared to the literature, these 10 constellations achieved a 44% improvement in PDoP (2.73) using the same number of satellites in each constellation, and meeting the performance requirements of planned Lunar missions.
Acta Astronautica, 2023
Global Navigation Satellite Systems (GNSS) are not only used in terrestrial applications, but als... more Global Navigation Satellite Systems (GNSS) are not only used in terrestrial applications, but also in Low-Earth orbit satellites and in higher altitude missions. NASA’s Magnetospheric Multiscale (MMS) mission has demonstrated the capabilities of existing GNSS systems to provide positioning, navigation, and timing (PNT) services in the Cis-lunar space.
The resurgence in plans by national space agencies for Lunar exploration presents a need for accurate, precise, and reliable navigation systems to ensure the safety and success of future missions.
Moreover, the increased amount of Moon missions over recent years, shows the requirement of navigation capabilities for Low Lunar orbiters, Moon landers, Moon rovers, and manned missions.
The success of Global Navigation Satellite Systems (GNSS) on Earth, presents an opportunity for the study of a potential design requirements and expected performance of a Lunar GNSS constellation.
We have approached this problem through the methodology of multi-objective optimization; numerically simulating the orbits, and using the Position Dilution of Precision (PDoP) as the figure of merit to optimize a set of 200 constellation designs and improving them gradually over 1864 generations. Over 12,000 unique constellation designs were generated with the best 10 constellations presented in this paper for consideration and further study. Compared to the literature, these 10 constellations achieved a 44% improvement in PDoP (2.73) using the same number of satellites in each constellation, and meeting the performance requirements of planned Lunar missions.
WO/2018/163141 SMART UMBRELLA FOR THE VISUALLY IMPAIRED, 2018
The present invention is related to integration of the Internet of things, in particular a smart ... more The present invention is related to integration of the Internet of things, in particular a smart umbrella for the visually impaired.
Specifically, the object of this invention is a smart umbrella for the visually impaired that, by using weather information of the region being broadcast by the national weather service, will activate a sound and/or vibrating signal, in case of rainfall or the level of ultraviolet rays intensity being too high, thus warning the visually impaired person of the need of using an umbrella. At the same time, the smart umbrella for the visually impaired shall activate sound and/or vibrating signals, in case of detecting obstacles in the surrounding area.
WO/2018/173024 SECURITY SENSING METHOD FOR AIRPORTS, 2018
The present invention may be included in the technical field of security devices and data recogni... more The present invention may be included in the technical field of security devices and data recognition, and it refers to a method identifying, by means of a sensing device, stress, emotional nerve and anxiety signs during the check at the security control of an airport, with the purpose of identifying possible threats by means of a sensory object and an image camera.
For that purpose, the method is defined by a system that parametrizes the normal or acceptable signs at a determined moment, with the purpose of making possible calculations that help identify physiological changes in the person being out of the ordinary state which warn about a possible attack, and thus achieving prevention thereof.
WO 2018/173024 A2 Security Sensing Method for Airports, 2018
This invention is a security method for identifying possible attacks, suicide people or hijacking... more This invention is a security method for identifying possible attacks, suicide people or hijacking attempt, which allows identifying physiological behaviour patterns as for example: anxiety, nerves, stress and others, reading internal patterns such as heartbeat, perspiration, levels of temperature, by means of sensory devices and image cameras wirelessly communicated. Furthermore, in order to speed up checking the passengers, the device is provided with an enclosed tunnel, optionally comprising a moving walkway, for more safety during the check.
WO/2018/163141, 2018
Smart umbrella for the visually impaired comprising a receiver for receiving weather information ... more Smart umbrella for the visually impaired comprising a receiver for receiving weather information being broadcast by the weather service, a vibration module, an acoustic signal emitter, an electronic control panel for the smart umbrella management and a power supply, all that integrated into the handle of the smart umbrella. Additionally, it comprises an obstacle sensor.
Patent WO 2018/173025A2-Communication Network for Search and Rescue based on Sensor and Animals, 2018
The patent is for a system implementing a communication network based on animals and sensors for ... more The patent is for a system implementing a communication network based on animals and sensors for human beings rescue tasks. The Object of the invention provides a novel method combining information collecting entities and communications devices with a light communication protocol which will be an alternative for emergency events where there are no conventional communication networks or these involve high cost
Conference Presentations by Angel Arcia
1st Central American Space Generation Workshop
San Jose, Costa Rica. 2019.02.23
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Papers by Angel Arcia
The resurgence in plans by national space agencies for Lunar exploration presents a need for accurate, precise, and reliable navigation systems to ensure the safety and success of future missions.
Moreover, the increased amount of Moon missions over recent years, shows the requirement of navigation capabilities for Low Lunar orbiters, Moon landers, Moon rovers, and manned missions.
The success of Global Navigation Satellite Systems (GNSS) on Earth, presents an opportunity for the study of a potential design requirements and expected performance of a Lunar GNSS constellation.
We have approached this problem through the methodology of multi-objective optimization; numerically simulating the orbits, and using the Position Dilution of Precision (PDoP) as the figure of merit to optimize a set of 200 constellation designs and improving them gradually over 1864 generations. Over 12,000 unique constellation designs were generated with the best 10 constellations presented in this paper for consideration and further study. Compared to the literature, these 10 constellations achieved a 44% improvement in PDoP (2.73) using the same number of satellites in each constellation, and meeting the performance requirements of planned Lunar missions.
Specifically, the object of this invention is a smart umbrella for the visually impaired that, by using weather information of the region being broadcast by the national weather service, will activate a sound and/or vibrating signal, in case of rainfall or the level of ultraviolet rays intensity being too high, thus warning the visually impaired person of the need of using an umbrella. At the same time, the smart umbrella for the visually impaired shall activate sound and/or vibrating signals, in case of detecting obstacles in the surrounding area.
For that purpose, the method is defined by a system that parametrizes the normal or acceptable signs at a determined moment, with the purpose of making possible calculations that help identify physiological changes in the person being out of the ordinary state which warn about a possible attack, and thus achieving prevention thereof.
Conference Presentations by Angel Arcia
The resurgence in plans by national space agencies for Lunar exploration presents a need for accurate, precise, and reliable navigation systems to ensure the safety and success of future missions.
Moreover, the increased amount of Moon missions over recent years, shows the requirement of navigation capabilities for Low Lunar orbiters, Moon landers, Moon rovers, and manned missions.
The success of Global Navigation Satellite Systems (GNSS) on Earth, presents an opportunity for the study of a potential design requirements and expected performance of a Lunar GNSS constellation.
We have approached this problem through the methodology of multi-objective optimization; numerically simulating the orbits, and using the Position Dilution of Precision (PDoP) as the figure of merit to optimize a set of 200 constellation designs and improving them gradually over 1864 generations. Over 12,000 unique constellation designs were generated with the best 10 constellations presented in this paper for consideration and further study. Compared to the literature, these 10 constellations achieved a 44% improvement in PDoP (2.73) using the same number of satellites in each constellation, and meeting the performance requirements of planned Lunar missions.
Specifically, the object of this invention is a smart umbrella for the visually impaired that, by using weather information of the region being broadcast by the national weather service, will activate a sound and/or vibrating signal, in case of rainfall or the level of ultraviolet rays intensity being too high, thus warning the visually impaired person of the need of using an umbrella. At the same time, the smart umbrella for the visually impaired shall activate sound and/or vibrating signals, in case of detecting obstacles in the surrounding area.
For that purpose, the method is defined by a system that parametrizes the normal or acceptable signs at a determined moment, with the purpose of making possible calculations that help identify physiological changes in the person being out of the ordinary state which warn about a possible attack, and thus achieving prevention thereof.