Hi all,I'm just wondering how can we perform a position hold (within 10-20 cm, just like microdrone MD4-200 did ) with a GPS and IMU because I know that the accuracy of normal GPS is aroung 2m and can not achieve up to few cm level if we dont have DGPS. So I'm thinking of a Kalman fusion between GPS and IMU to give a more accuracy in position ? I'm not so clear about that, it has made me confused for a long timeThat's why I post this entry to get your inputAny idea are appriciated and welcome.I forget to post a link to you guy for easy imagination of GPS position hold.http://microdrones.com/en_mc_videos.phpthen looking for a video name "flight-performance md4-200, part 3", this is what it called "GPS positon hold"
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