Discover SaminYeasar/Simplest-and-Most-Affordable-GPS-Tracking-System

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Language
MATLAB
Created over 7 years ago
Updated over 7 years ago

SaminYeasar

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Sole idea of this project was to make cheapest GPS tracking system possible. Proposed GPS tracker was made for initially a Lab Project. We didn’t want to spend money on buying GPS module which would cost around 100 USD in Bangladesh and smart coding to execute it properly. So we decided to make the simplest and most affordable GPS tracker possible. We wanted to use our smart cell phone which already has an imbedded GPS and use MATLAB code to build a system that itself provided update GPS location once initialized.

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The Electric Network Frequency (ENF) is the supply frequency of power distribution networks, which can be captured by multimedia signals recorded near electrical activities. It normally fluctuates slightly over time from its nominal value of 50 Hz/60 Hz. The ENF remain consistent across the entire power grid. This has led to the emergence of multiple forensic application like estimating the recording location and validating the time of recording. Recently an ENF based Machine Learning system was proposed which infers the region of recording from the power grids ENF signal extracted from the recorded multimedia signal, with the help of relevant features. In this work, we report some features novel to this application which serve as identifying characteristics for detecting the region of origin of the multimedia recording. In addition to the ENF variation itself, the utilization of the ENF harmonics pattern extracted from the media signals as novel features enables a more accurate identification of the region of origin. These characteristics were used in a multiclass machine learning implementation to identify the grid of the recorded signal.

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