151-160 of 267 results
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Vision and Wireless-Based Surveying for Intelligent OSAM Navigation (VISION)
PI Hever Moncayo
CO-I Kadriye Merve Dogan
In this project, which is a SpaceWERX Phase I STTR program with Orbital Prime, we are developing algorithms to increase autonomy of OSAM applications.
In this project, which is a SpaceWERX Phase I STTR program with Orbital Prime, we are developing algorithms to increase autonomy of OSAM applications. This includes the application of machine learning techniques to improve accuracy of position and orientation estimation for proximity operations in space. Machine learning include deep learning combined with vision-based navigation designed and tested in both, virtual simulation environment and actual thrust-based spacecraft system.
Categories: Faculty-Staff
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Mitigating GPS and ADS-B Risks for UAS
PI Hever Moncayo
In this project, the research team is investigating different strategies to mitigate such risks and proposing methodologies to increase safety of UAS operations within the National Airspace.
This project is funded under the FAA ASSURE program. Unvalidated or unavailable GPS and “ADS-B In” data poses security and safety risks to automated UAS navigation and to Detect and Avoid operations. Erroneous, spoofed, jammed or dropouts of GPS data may result in unmanned aircraft position and navigation being incorrect. This may result in a fly away beyond radio control, flight into infrastructure or flight into controlled airspace. Erroneous, spoofed, jammed or dropouts of “ADSB-In” data may result in automated unmanned aircraft being unable to detect and avoid other aircraft or result in detecting and avoiding illusionary aircraft.
In this project, the research team is investigating different strategies to mitigate such risks and proposing methodologies to increase safety of UAS operations within the National Airspace. Several topics related to this project include simulation of dynamic systems, artificial intelligence, flight testing of UAS and hardware implementation.
Categories: Faculty-Staff
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Deep-Learning-Based Unobtrusive Estimation of Pilot Adverse Interactions and Loss of Energy State Awareness
PI Hever Moncayo
This project aimed at gaining more insight into the mechanisms of pilot SD and LESA occurrence, capturing their dynamic fingerprint, and developing on-board intelligent schemes capable of predicting and detecting these dangerous phenomena associated to pilot behaviors.
Findings: Final report submitted 9/24. Each of the mathematical models showed good capabilities of estimating each of the pilot parameters and represent a promising tool towards the characterization of pilot behavior using learning components. Continuation can be pursued by generalizing or extending the proposed results to other aircraft-pilot dynamics, possibly eVTOLs for AAM.
Student and Curriculum impact. The simulation and testing tools will be integrated as part of the experiential learning of the course AE623 Guidance, Navigation and Control that will be taught by the PI next Fall 2025. The proposed technique also allowed a master student in Aerospace Engineering to complement and enhance her thesis outcomes.
Categories: Faculty-Staff
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Efficient Management of Certificate Revocation List (CRL)
PI Shafika Showkat Moni
Most of the Public Key Infrastructure (PKI) based security and privacy solutions for VANETs use pseudonyms where each vehicle gets multiple identities to improve privacy significantly.
Most of the Public Key Infrastructure (PKI) based security and privacy solutions for VANETs use pseudonyms where each vehicle gets multiple identities to improve privacy significantly. A vehicle needs 720 pseudonyms in 24 hours and 262,800 pseudonyms in 1 year, according to the US-based SAE J2735 standard. Trusted Authority (TA) revokes all the pseudonyms assigned to a malicious vehicle and stores them in the CRL. However, the overhead of maintaining such a large volume of identities is overwhelming for traditional CRL-based solutions. In turn, it incurs a higher delay to update and broadcast the CRL periodically. We have designed a novel approach by leveraging the Cuckoo Filter to reduce the storage, computation, and communication overhead associated with the CRL in VANET. The cuckoo filter contains only one entry for all pseudonyms of a revoked vehicle, thereby minimizing the overhead associated with CRL verification. Our scheme also provides an efficient lookup operation for vehicles and Road Side Units (RSUs) in a Vehicle to Infrastructure (V2I) scenario.
Categories: Faculty-Staff
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Privacy-Preserving Authentication Scheme
PI Shafika Showkat Moni
This research project focuses on designing efficient privacy-preserving authentication schemes to reduce the communication and computation overhead related to authenticating entities in VANET.
This research project focuses on designing efficient privacy-preserving authentication schemes to reduce the communication and computation overhead related to authenticating entities in VANET. We have exploited Merkle Hash Tree and Modified Merkle Patricia Trie (MMPT) to overcome the performance limitations of the conventional approach of authentication, such as the ECDSA algorithm for efficient authentication of Road Side Units (RSUs) and Vehicles in VANET. A detailed security analysis is carried out to demonstrate the effectiveness of our authentication scheme against message modification attacks, replay attacks, and message injection attacks. Performance evaluation also shows that the proposed scheme has a significantly lower authentication overhead than other related schemes.
Categories: Faculty-Staff
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Critical Fora Discussing U.S.-Japan Space Security Cooperation
PI Elisabeth Murray
The proposed project aims to bring together leading American and Japanese space security experts with students and faculty from Embry Riddle Aeronautical University (ERAU) for a dialogue on the current state of space security and the potential for cooperation between Japan and the United States.
At the core of this project are two central goals. The first is the creation of an undergraduate-level course on U.S.-Japan Space Security Cooperation, which will be developed as part of the Security Studies and International Affairs (SSIA) Department’s Spring 2026 offerings at ERAU, a leading institution in aviation and aerospace; the second is to provide heightened public engagement between residents of the Space Coast and leading policy and academic practitioners in the field of U.S.-Japan space security.
To meet these goals, eight (8) space security experts from Japan and the U.S. will be invited to deliver a public lectures, providing both students, whose attendance will be required, faculty, and the larger public in and around the Space Coast with a unique opportunity to engage directly with leaders in the field, fostering an exchange of ideas that bridges theoretical knowledge with real-world perspectives. Through this dialogue, the project seeks to inspire students aspiring to pursue security-related careers in government policy and space industry advancement.
The project explores key questions in U.S.-Japan space security cooperation, such as: How can both nations enhance collaboration to address shared security challenges in space? What strategic and policy gaps exist, and how can these gaps be bridged to strengthen bilateral cooperation? Through these and other discussions, ERAU students and lecture attendees will gain insights into the complex dynamics of space security, and the challenges and opportunities inherent in U.S.-Japan cooperation in the space domain.
The proposed project thus has the following objectives:
1) Educational Outreach: The course and public lectures will deepen understanding of U.S.-Japan Space Security Cooperation and expose the audience to leading scholars and practitioners in this field; impact will be furthered through the creation of a sharable course dossier, a special issue journal written by undergraduate students, and the development of a grant proposal funding a topic-focused workshop in 2027.
2) Promoting Dialogue: The project will encourage the exchange of ideas between leading experts and the next generation of security professionals and industry leaders;
3) Fostering Next-Generation Solutions: The project aims to inspire innovative thinking on a global issue of mutual importance in the next generation of military and civilian policymakers and practitioners.Categories: Faculty-Staff
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The US Military and Genocide: Perpetration, Liberation, Witness, and Prevention
PI Elisabeth Murray
This program aims to facilitate a stronger relationship between veteran and ROTC students through the creation of a training and discussion program using the lens of the US military and genocide.
There are two key goals we seek to achieve through the completion of this program. The primary goal is to serve veterans through discussions of key humanities texts in genocide studies. The second goal is to bridge the ROTC and veteran communities and help prepare the next generation of military officers. There are few places where veterans can discuss the history of the US military’s relationship with genocide and help put their experience into a framework for understanding the future role of the US military in genocide prevention. To provide such a framework, this project will provide training and discussion opportunities on different cases of genocide which have been directly influenced by the US military. We will look at four different themes in relation to four different case studies:
1. US military perpetrating genocide (specifically against the Seminole in Florida);
2. US military liberating genocide (Holocaust, specifically the liberation of camps);
3. US military witnessing genocide (specifically the Yazidis and others fighting ISIS);
4. US military preventing genocide (the future of Afghanistan).
We understand the humanities as key to fostering an environment free from judgement, blame, or self-recrimination. We also understand that while it is key for both our leaders and our discussion participants to understand facts about the military’s involvement in these cases, using humanities helps negotiate the often under-acknowledged emotions of fear, rage, sorrow, pain, and sometimes other and even opposite emotions such as love, hope, and joy present within the human landscape of genocidal aggression.
We believe that a program of this nature firstly identifies a narrative and on-going relationship between the US military and the processes and consequences of genocidal violence. Considering especially the increasing challenges posed by climate change, the ongoing conflict in Eastern Europe, and increased tensions in the South China Sea, providing a space for veterans to explore this narrative will also help prepare them to understand future conflicts. However, this project goes beyond the creation of a discussion space for veterans. As discussed further below, Embry-Riddle (ERAU) has a large veteran community. ERAU also hosts one of the largest ROTC programs in the state of Florida consisting of students at three universities in Volusia County. However, there are few opportunities for these two communities to learn from each other. We believe providing an opportunity to bridge these communities will inevitably result in a stronger, more capable ROTC cadre and will provide leadership opportunities within our veteran population, adding to their skillset and knowledge transfer capabilities. The second goal of this project is to support a series of opportunities for these two communities to come together, using humanities sources as a framework for discussion. We will achieve this through the training of eight veteran discussion leaders, who will go on to lead a course under the direction of faculty offered in Fall 2023, US Military and Genocide, open to all students but targeting those in ROTC and, in Spring 2024, a series of three public discussions held at participating universities.
We believe the creation of a university course and a public discussion series on the US Military and Genocide will bring ROTC and veteran students together through deepening their understanding of the contribution of the humanities to war studies; we hope to use the community of studentship to help bridge the divide between different military “generations”. This would then continue into the facilitation of public discussions that will allow for the leadership skills gained by veterans in the classroom to be demonstrated on a larger scale and to a wider audience. Finally, we believe that both the course and discussion series will contribute to the repositioning of humanities resources into core teaching in genocide studies. While widely regarded as critical to reconstruction and reconciliation (Skavdahl 2020), humanities resources such as music and poetry are largely under-used in syllabi on genocide courses, particularly in cases other than the Holocaust (Schneider 2014). We believe exposing veterans and ROTC students to humanities sources provides a deeper understanding of mass violence than an historical study alone can convey. In genocide studies, it is easy to get lost in the numbers; 1 million dead, 500,000 dead, 6 million Jews, 13 million victims – these numbers are hard for the mind to understand and often mask the impact of each individual loss. Music, poetry, art, and oral history are not only at the center of the humanities but are at the heart of humanity; they give voice to the cultural structure of identity. Genocide is legally defined as the intentional destruction "in whole or in part a national, ethnical, racial or religious group”. The destruction of culturally defined humanities artifacts are integral to the destruction of that group identity. By highlighting the value of these works in understanding the US Military’s relationship with genocide, we hope to reposition the value of the individual and to give our veterans and rising military leaders a chance to better understand their place within this relationship.Categories: Faculty-Staff
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Collaborative Research: Wideband Multi-Beam Antenna Arrays: Low-Complexity Algorithms and Analog-CMOS Implementations
PI Sirani Mututhanthrige Perera
PI Arjuna Habarakada Madanayake
PI Soumyajit Mandal
Explosion of millimeter-wave (mm-wave) bandwidth opens up applications in 5G wireless systems spanning communications, localization, imaging, and radar. This project addresses challenges in mathematics, engineering, and science in developing efficient wideband beamformers based on sparse factorizations of the matrix called-delay Vandermonde matrices (DVM). The proposed highly integrated approach is attractive for mobile applications including 5G smart devices, the internet of things, mobile robotics, unmanned aerial vehicles, and other emerging applications focused on mm-waves.
A multi-beam array receiver is deeply difficult to realize in integrated circuit (IC) form due to the underlying complexity of its signal flow graph. Through the proposed work, mathematical methods based on the theories of i) sparse factorization and complexity of the structured complex DVM with the introduction of a super class for the discrete Fourier transform(which is DVM), and ii) approximation transforms are proved to solve this problem.
The resulting matrices are realized with multi-GHz bandwidths using analog ICs. The novel DVM algorithm solves the longstanding "beam squint" problem, i.e., the fact that the beam direction changes with input frequency, making true wideband operation impossible. Moreover, the proposed multi-beamforming networks in analog IC form will be realized efficiently while addressing precision circuit design, digital calibration, built-in self-test, etc. Besides scientific merits, both minority students and female students will be mentored to pursue careers in the STEM disciplines through the proposed project.
This project was funded by the National Science Foundation (the division of Electrical, Communications, and Cyber Systems) with award numbers 1711625 and 1711395.
Categories: Faculty-Staff
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A data analytics framework for the application of pedestrian dynamics to public health
PI Sirish Namilae
CO-I Mandar Kulkarni
The central hypothesis of this NIH funded project is that combining location-based service (LBS) data with pedestrian dynamics modeling can uncover movement patterns of people in complex situations with many public health applications. In Aim 1, we will develop an application-agnostic pedestrian dynamics modeling framework that assimilates LBS data. We will compare our approach to methods that do not utilize LBS in order to evaluate accuracy of human movement across multiple scenarios. In Aim 2, we will apply the pedestrian movement and interaction information to a variety of public health domains. These include: viral infection spread at local and global scales, enhancing walkability for active aging, and safe evacuation of the elderly. Finally, in Aim 3, we will translate our pedestrian dynamics modeling framework into public health practice. We will provide our platform to different stakeholders and obtain feedback on user satisfaction to improve the system design.
Categories: Faculty-Staff
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Nanoscale Design of Interfacial Kinematics in Composite Manufacturing
PI Sirish Namilae
CO-I Marwan Al-Haik
This NSF-funded research will elucidate the role of interfacial kinematics and energetics in the evolution of inter-ply interfaces in composite structures during manufacturing. The research team will develop a novel experimental method for in-situ characterization of surface and interface deformations during composite processing, utilizing a customized commercial composite autoclave with a digital image correlation system. The surface strain and displacement measurements will be combined with ex-situ X-ray tomography and thermal characterization to map the interfacial thermomechanical response as a function of design and processing parameters. Additionally, the interfacial behavior will be engineered through the rapid and controlled growth of ZnO nanowires on carbon fibers to create a nanoscale interfacial component that increases the fiber bending resistance and creates an interlocking effect at the interfaces to mitigate defects propagation. The experimental research will be complemented by molecular dynamics simulations of the sliding of amorphous polymer interfaces and mesoscale simulation of flow in porous media. This comprehensive approach of in-situ characterization, interface design, and modeling will lead to a fundamental understanding of the ply movement during composite manufacturing and development of methods to reduce the occurrence of processing-induced defects.
Categories: Faculty-Staff
151-160 of 267 results