Angular deformation measurement error evaluation method for inertia quantity matching alignment

The invention discloses an angular deformation measurement error evaluation method for inertia quantity matching alignment. A correlation function expression of an angular velocity matching deformation measurement error is established; and the error is not only related to an autocorrelation function of a hull angular velocity but also related to a cross-correlation function of the hull angular velocity and a dynamic deformation angular velocity component error. On the basis of a Kalman filtering error covariance matrix theory, the invention provides a method for describing a dynamic deformation angular velocity component error by using covariance matrix elements and an adjustment optimization coefficient is introduced to obtain a complete deformation angle error estimation formula, so thatan error estimation result can better describe the change of real errors. Verification is performed based on actually measured hull deformation data; and the result shows that the estimation formulahas a good error estimatio