Title
DriftLess™, an innovative method to estimate and compensate for the biases of inertial sensors
Author
Ruizenaar, M.G.H.
Kemp, R.A.W.
Publication year
2014
Abstract
In this paper a method is presented that allows for bias compensation of low-cost MEMS inertial sensors. It is based on the use of two sets of inertial sensors and a rotation mechanism that physically rotates the sensors in an alternating fashion. After signal processing, the biases of both sets of sensors are estimated and compensated for, resulting in a virtually bias free inertial sensor. A demonstrator has been build. First results with a test of the demonstrator in an airborne application show that the bias of low-cost MEMS gyroscopes can be reduced to less than 20 deg/hr. Further improvements up to a 2 deg/hr level are demonstrated in the laboratory. Lab-tests have shown that the bias of low-cost accelerometers can be reduced to below 0.1 mg.
Subject
TS - Technical Sciences
Physics & Electronics
Industrial Innovation
High Tech Systems & Materials
Indoor navigation
Drifting
Inertial navigation
Inertial sensors
Micro electro-mechanical systems MEMS
Signal processing
Bias compensation
DSS - Distributed Sensor Systems ; II - Intelligent Imaging
To reference this document use:
http://resolver.tudelft.nl/uuid:58ef4ec5-1289-4b66-a0e7-eea96eab243b
TNO identifier
500950
Publisher
NIN, Rotterdam
Source
Proceedings of the ENC-GNSS 2014, the European Navigation Conference, 15-17 April 2014, Rotterdam, The Netherlands
Document type
conference paper