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在代码中Rwb.transpose() * ( ddp - gn ),有点迷惑,我觉得应该是加号啊,难道这个z轴向下?
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@Jxpenggf 当加速度计各轴和东北天坐标系对齐,根据受力平衡,f+mg=ma. 加速度计通过测量 f 得到加速度测量,即imu_acc,imu_acc = f/m = a - g. 当加速度计各轴和东北天坐标系不对齐,Rwb*f + mg = ma,得出 imu_acc = Rbw(a-g)。以上推导与g的正负无关。东北天下g=(0,0,-9.81)。
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在代码中Rwb.transpose() * ( ddp - gn ),有点迷惑,我觉得应该是加号啊,难道这个z轴向下?
The text was updated successfully, but these errors were encountered: