Performance Evaluation and Comparison of Magnetometers for In-door Positioning

摘要

Magnetic in door positioning has aroused much attention in the past few years. However, its performance varies not only with available magnetic anomaly dataset but also with the quality of magnetometer measurements. As a magnetic instrument, the performance of a magnetometer is expressed by quite some indexes that are confusing. In this work, we propose a unified model in understanding the performance of a magnetometer. Based the model, we evaluated and compared the performance of popular magnetometers for in-door positioning. Our work is insightful in understanding the performance and limitations of magnetometers for those who want to study magnetic in-door positioning.