Bachelor Theses

2024

1. ETSIST

   Design and Development of a Three-Axis Stabilized Pointing System Based onMicroprocessors for Obtaining Self-Leveled and Magnetically Oriented Images

   César García Moreno

   Jul 2024

   Abs

   The purpose of this project, titled "Design and Development of a 3-Axis Stabilized Pointing System Based on Microprocessors for Obtaining Auto-Leveled and Magnetically Oriented Images," is to design, implement, manufacture, and validate the necessary electronics to enable the rapid, precise, and semi-automatic creation of antenna visibility masks. Currently, ground-satellite communication is crucial in both civilian and military fields. Its constant use is fundamental for tasks such as geolocation, obtaining meteorological, scientific, and strategic data, as well as establishing communications, among many other applications. This communication takes place during specific periods called communication windows, which are intervals when the satellite and the antenna have a direct line of sight. Due to the high speed of low-orbit satellites, which constitute most operational satellites today, these communication windows are brief, typically between 10 and 15 minutes. Therefore, it is essential that these windows are not limited by objects in the antenna’s environment. To ensure optimal communication, a visibility mask is used to evaluate the full range of visibility between the antenna and the satellite. Specifically, a visibility mask is a set of data that relates an antenna’s azimuth position to the minimum elevation necessary to maintain visibility with the satellite. To generate visibility masks in a semi-automatic, rapid, and precise manner, it is proposed to implement a system based on capturing and processing images around the antenna to obtain the azimuth and elevation values of the visibility mask. The system developed in this project allows for the remote acquisition of images that are automatically leveled and geographically oriented. To implement a valid system for this task, a set of sensors and actuators are studied and implemented to ensure the validity of the images for subsequent processing. The obtained results confirm that with current technology, a system capable of generating a set of correctly calibrated, leveled, and oriented images for creating visibility masks with an error of less than 0,5^∘ in azimuth and elevation can be developed. The results have also identified some system limitations and improvements to overcome these limitations. In conclusion, the implemented system guarantees high precision in identifying communication windows and optimizes the time and resources necessary for the deployment and adjustment of antennas.

2. ETSIST

   Communication and Processing System for Obtaining Horizon Elevation

   César García Moreno

   Jul 2024

   Abs

   The purpose of this project, titled "Communication and processing system for obtaining horizon elevation" is the design and implementation of a system architecture to create horizon elevation reports, allowing the control of multiple hardware devices and being controlled from various types of devices. Currently, ground-satellite communication is crucial in both civilian and military fields. Its constant use is fundamental for tasks such as geolocation, obtaining meteorological, scientific, and strategic data, as well as establishing communications, among many other applications. This communication occurs during specific periods called communication windows, which are intervals when the satellite and the antenna have a direct line of sight. Due to the high speed of low orbit satellites, which most operational satellites are, these communication windows are brief, typically between 10 and 15 minutes. Therefore, it is essential that these windows are not limited by objects in the antenna’s environment. To ensure optimal communication, a visibility mask is used, which evaluates the full range of visibility between the antenna and the satellite. Specifically, a visibility mask is a set of data that relates an azimuth position of the antenna to the minimum elevation necessary to maintain visibility with the satellite. To generate visibility masks in a semi-automatic, quick, and accurate manner, it is proposed to implement a system based on capturing and processing images around the antenna to obtain the azimuth and elevation values for the visibility mask. The system developed in this project allows the processing of a set of images whose pointing direction and camera characteristics are known, to generate visibility masks from this data. The results obtained confirm that, with current technology, it is possible to develop a system capable of transmitting, processing, and displaying visibility masks with an error of less than 0.5^∘ in azimuth and 0.5^∘ in elevation. While achieving the results, some limitations of the system were also identified, as well as possible improvements to overcome these limitations. In conclusion, the implemented system not only guarantees high precision in identifying communication windows but also optimizes the time and resources needed for the deployment and adjustment of antennas.

In progress

Bachelor Theses

2025

1. ETSIST

   Development of an intelligent system to support emergency response

   Arturo López López

   2025

2024

1. ETSIST

   Development of a system for detecting suspicious activities in telematic communications with a practical focus on accessibility and usability

   Rubén Sanz Barrio

   2024