Cramér-Rao Lower Bounds for Unconstrained and Constrained Quaternion Parameters
IEEE TRANSACTIONS ON SIGNAL PROCESSING（2025）
Key words
Quaternions,Vectors,Signal processing,Lower bound,Calculus,Signal processing algorithms,Covariance matrices,Maximum likelihood estimation,Three-dimensional displays,Image color analysis,Quaternion Cramer-Rao lower bound,quaternion constrained Cramer-Rao lower bound,quaternion Fisher information matrix,quaternion parameter estimation,GHR calculus
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