Ultra Low-Power 9D Sensor Fusion Implementation

How to improve cycle count and energy consumption using processor acceleration.

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This paper presents a case study on computing the 3D orientation of a device by means of a 9D fusion algorithm. The focus is on optimizing the fusion algorithm for execution on the DesignWare Sensor IP Subsystem. Performance measurements show the benefits of using ARC Processor EXtension (APEX) accelerators, which improve both cycle count and energy consumption in comparison to other commercial processors by a factor of 6-25.

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