GMM and EM algorithm-based non-Gaussian distribution CEP estimation method
A non-Gaussian distribution and Gaussian component technology, which can be used in complex mathematical operations and other directions, and can solve problems such as the decline in the accuracy of CEP evaluation.
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[0051] The present invention includes the following steps.
[0052] S.1 Observational data collection and collation;
[0053]The observation data refers to the coordinate value of the impact point or the target positioning point, which is written in the form of vector x; the coordinate system selects the Cartesian coordinate system, and the coordinate origin selects the target or the center point of the target to be reconnaissance; when M experiments are performed, the M observation data are written as vector collection {x 1 , x 2 ,...,x M}form;
[0054] S.2 Given the initial value of the parameter;
[0055] Take the initial weight parameter w k ∈(0,1), and All mean vectors μ k In the collection containing observation data {x 1 , x 2 ,...,x M} selected from the smallest rectangle; all covariance matrices R k The diagonal elements of and the set of observation data {x 1 , x 2 ,...,x M} The squares of the corresponding side lengths of the smallest rectangle are eq...
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