136 citations · 256 across the 15 of their papers we have counts for
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math.NA2017
Simultaneous diagonalisation of the covariance and complementary covariance matrices in quaternion widely linear signal processing
Min Xiang, Shirin Enshaeifar, Alexander E. Stott +4
Recent developments in quaternion-valued widely linear processing have established that the exploitation of complete second-order statistics requires consideration of both the stan…
math.NA2014★ 136 cited
Quaternion Gradient and Hessian
Dongpo Xu, Danilo P. Mandic
The optimization of real scalar functions of quaternion variables, such as the mean square error or array output power, underpins many practical applications. Solutions often requi…