Miniaturized inertial measurement and navigation sensor device and associated methods
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
May 31, 2011
filing date -
May 28, 2010
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Abstract
A miniaturized inertial measurement and navigation sensor device and a flexible, simplified GUI operating in real time are provided to create an optimum IMU/INS. The IMU includes multiple angle rate sensors, accelerometers, and temperature sensors to provide stability device. A navigation GUI tests algorithms prior to embedding them in real-time IMU hardware. MATLAB code is converted to C++ code tailored for real-time operation. Any point in the algorithm suite structure can be brought out as a data channel to investigate the pattern of operation. The data channels permit zooming in on the algorithm's operation for the open-loop angle, velocity and position drift measurements for bias-compensated channels. The GUI can be used to verify results of an extended Kalman filter solution as well as the implementation of the real-time attitude and heading reference system. When the code has been verified, it is compiled and downloaded into a target processor.
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