Master's Projects

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Master's Projects

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https://hdl.handle.net/1853/71003

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Now showing 1 - 10 of 52

The Development and Characterization of the Laser Ranging System on the RANGE CubeSat Mission

(Georgia Institute of Technology, 2016-12-15) Levine, Zachary A.

In Spring 2016, Georgia Tech Space Systems Design Laboratory (SSDL) will begin operations on the Ranging And Nanosatellite Guidance Experiment (RANGE) Mission. A crucial element of this mission is the Inter satellite ranging system. This system will determine the relative distance between the two RANGE sister CubeSats providing validation that such a system can function in orbit on a CubeSat. This document describes the factors considered in choosing the Voxtel Laser Range Finder (LRF) Module as the flight unit for both satellites, the integration and testing of this system, and the preliminary analysis of laboratory testing data to predict on-orbit performance.
Piana High-Performance Data-as-a-Service (DaaS) Microservice Framework

(Georgia Institute of Technology, 2016-12) Wang, Yu

The project “Piazzalytics” for the time being is, 1) to create a set of RestFul APIs to allow users extracting the entire online post information with the same hierarchical manner, 2) to persist the extracted data in the database and monitor the post communication, 3) to provide a functionality of notifying the users when new target posts/responses with desired keywords are created, and 4) finally to offer several analytical data services via the Restful APIs, including the historical records in the data warehouse and the data differential features. Although the current Piana data micro service project is still in its proof-of-concept stage, however, it has been already able to provide any further Piazza-related projects with the Piazza data service. Having said, this project could be even better if the JSON data from the Piazza could be further cleaned and reformatted to remove any irrelevant parts.
Web Application to Teach Elementary School Students Sentence Parts via Diagramming

(Georgia Institute of Technology, 2016-12) Scherer, Carl Geary, Jr.

While many educators avoid the subject of diagramming sentences when teaching English sentence parts and grammar, this paper presents a web application that leverages simplified sentence diagramming to teach or reinforce existing knowledge of sentence parts in elementary school students. It uses a visual depiction of sentences that has several levels of complexity to appeal to varying age students and provides feedback that mimics an Intelligent Tutoring System to help students complete their learning goals.
Design and Application of a Circular Aperture Sun Sensor

(Georgia Institute of Technology, 2016-12) Herman, Michael
The Development and Characterization of the Laser Ranging System on the RANGE CubeSat Mission

(Georgia Institute of Technology, 2016-12) Levine, Zachary A.
ITS Analyzers - Meta-Analysis Research on the Effectiveness of Intelligent Tutoring System (ITS) Products

(Georgia Institute of Technology, 2016-12) Rao, Vinay ; Guin, Gouri

Evaluation of intelligent tutoring systems (ITS) is an important area of research in current educational practices. There are many work has been done to analyse the effectiveness of various ITS products to aid student education. We focused on top 3 ITS products to compare and analyse individual ITS product outcome and its effectiveness. Additionally, we explored the current problems that may exist with measuring the effectiveness of ITS by conducting research study on different methods that are currently used.
Refinements to the General Methodology Behind Strapdown Airborne Gravimetry

(Georgia Institute of Technology, 2016-08-05) Seywald, Kevin Lee

Measuring Earth’s gravitational field has important applications in fields ranging from geodesy to exploration geophysics. Gravity field disturbances are typically no more than 100 mGal, hence requiring extremely precise sensors. The estimation of error sources inherent in these sensors, such as bias, scale factor, and drift rate, significantly improve the accuracy of these measurements, allowing for more precise gravity estimates. This research builds upon prior work using a strapdown Inertial Navigation System (INS) paired with Global Positioning Systems (GPS) for airborne platforms. In order to test and validate the processing algorithms, various simulated test cases were created. Several refinements were made to the traditional approach found in the literature, making the process more robust. Most notably, an analytical solution was developed for the quaternion integration problem, which is typically implemented using numerical methods. The analytical solution limits the integration error to machine precision, and removes any error propagation. Furthermore, the error equations implemented in the Kalman Filter were refined such that they better capture the true dynamics of the error-states. These changes to the existing methodology were validated by the proposed algorithm’s ability to accurately estimate the parameters used to generate the simulated flight data.
Habitat Suitability Analysis for the Frosted Flatwoods Salamander in Florida

(Georgia Institute of Technology, 2016-08) Italiano, Anne

Species conservation and habitat protection are significant ecological issues that the internationally community has been addressing for decades, yet are challenging to incorporate into city and regional planning. The value of a species is difficult to quantify and measure against the potential for economic development and expansion of housing and industry. GIS offers a way to analyze land area according to multiple values and potential uses. Raster analysis is particularly useful in determining suitability of land uses as well as prioritizing development and preservation of land based on a set of weighted inputs. This project seeks to model a way that GIS can be used to determine suitability of areas in a defined region to provide habitat for a threatened or endangered species and prioritize areas for conservation to inform policy decisions. The focus of this study is on the spatial relationships between habitat factors that can support a specific species. In this case, the habitat factors include vegetative cover, proximity to freshwater wetlands, and distance from developed areas (which are completely unsuitable). The species of concern is a threatened salamander native to the southeastern United States, the frosted flatwoods salamander (Ambystoma cingulatum). The study area is the entire state of Florida.
Refinements to the General Methodology Behind Strapdown Airborne Gravimetry

(Georgia Institute of Technology, 2016-08) Seywald, Kevin Lee
Mechanical Design of a Cubesat Aeroshell for an Earth Demonstration of Single-Stage Drag Modulated Aerocapture

(Georgia Institute of Technology, 2016-08-01) Woollard, Bryce A.

The following article documents the conceptual study of a smallsat entry vehicle to be implemented for demonstration of single-stage drag modulated aerocapture at Earth. The specific nature of the contents below focuses on the mechanical design and analysis of the aeroshell and drag device, as well as the mechanisms by which all parts are to be manufactured, assembled and actuated in order to perform the intended orbital maneuver. The results of this study show that accomplishing aerocapture with a cubesat entry vehicle appears to be feasible with a 2U payload and would require approximately 20 kg and 0.1 m3 of secondary payload mass and volume, respectively. First order stagnation point thermal protection sizing suggests that 4.2 cm of PICA would be required globally around the vehicle, although potential exists to optimize this value relative to geometric location. Static stability analysis indicates that the designed vehicle is nose-forward stable for a majority of the atmospheric interface with outstanding questions pertaining to atmospheric egress. Manufacturing costs for a full scale aeroshell would be approximately $15,000 and require roughly 2 months of lead time, dependent on presently available machine shop capabilities.