Matt and Craig, How about doppler ultrasound for the velocity? Of course its widely used but would it be accurate enough? Some web references below relevant to the technology and my comments about combining gyros and accelerometers. Reference 3 describes the potential use of multiple (4) IMU magnetometers to measure velocity and position. Might be worth asking if Talon are considering a similar approach. http://invensense.com/kr/mems/gyro/documents/articles/motion_sensing_accel_human.pdf http://cvlab.epfl.ch/publications/publications/2006/DejnabadiJCFA06.pdf http://cas.ensmp.fr/~petit/papers/cdc07/DV.pdf All the best, PeterO *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Jul 26 2010 - 14:46:56 PDT
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