paul.c:
i believe jkraeme is correct. the rm3000 3 axis sensor suite does appear to fuse accerometers, gyros and magnetometers with a ‘military’ grade kalman filter.download the data sheets and see for yourself.
From the SpacePoint document:
REQUIREMENTS
A complete SpacePoint® 3D Sensor System requires:
• Three 3-axis sensors
• PNI’s new patented Reference Magnetic Sensor RM3000*
• A 3-axis accelerometer
• A 3-axis gyro
The RM3000 is only a 3 axis magnetic sensor. I have looked at the RM3000 user manual which states:
The RM2000 is comprised of two Sen-XY Reference Magnetic Sensors (pn 12683) and a 3D MagIC ASIC MLF controller (pn 12927), and this forms the basis for a 2-axis (horizontal) digital compass. The RM3000 is the same as the RM2000 but adds a Sen-Z Reference Magnetic Sensor (pn 12779), such that compassing measurements are not constricted to the horizontal plane.
No mention of accelerometers, gyros, or Kalman filter.