GPS Based Target Sensing System

This thesis presents a study of GPS based tracking systems with an emphasis on target detection using a software approach. Working principles of the Global Positioning System, calculations necessary for finding user positions, GPS operation algorithms, methods of GPS based target detection, and an embedded system evaluation are presented. A fully functional IoT GPS tracking system consisting, in part, of a single-core microcomputer is implemented. Raw data is fetched from the GPS module moving in real-time, streamed, and analyzed using a remote GUI application, which aids in displaying the position of the unit. This paper investigates a real-time GPS receiver and designs a modest real-time GPS receiver system providing an effective method for target detection. For the experiments presented, an antenna with a Ublox GPS chipset of 56 channels and a sensitivity of -162 dBm ~ -158 dBm has been used. The experimental results for target-receiver detection scenarios have been conducted at or near the California State University, Northridge campus.