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vins-mono论文推导及代码解析中存在疑问 #6

@chennuo0125-HIT

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@chennuo0125-HIT

附录10.4 imu角度误差对k时刻角度误差的jacobian推导中,求的是k+1时刻到k时刻角度误差相对于k时刻姿态q的偏导数,而实际在求导过程中求的是对轴角的导数,姿态q是四元素表达的是四维,而轴角是三维,为什么可以做这种替换?有什么文献可以参考吗?
fulu

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