Indoor Location Services with IndoorAtlas
The Mr. Beacon Ambient IoT Podcast
00:00
How to Read the Earth's Magnetic Field
The compass needle is some kind of a 2D projection of the Earth's magnetic field. The hard part with this is that you have to be able to pick up the good signal from the noise and also compute what is known as the bias. Every smartphone has a bias component, which means that it will distort the geometric the 3D dimensional vector in a certain way.
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