当然，你可能也会用到四元数转换的“常规”表示法。

Of course, you'll also need to be able to convert from "conventional" representations to quaternions.

youdao

用高斯-牛顿误差最小法将六维观测量转化为四元数，作为观测量的一部分，显著减少了直接使用EKF的计算量。

Gauss-Newton error minimization is used to transform six-dimentional reference vector to quaternion as a part of observations for EKF, which significantly reduces the computational requirement.

youdao

因此，对于解决欧拉方程奇异性来讲，双欧法要优于四元数法。

So, dual Euler method is better than quaternion method in the solution of the singularity of the Euler equation.

youdao