Misspecified parameter estimation for heavy-tailed noise models: Student's t-distribution or bivariance Gaussian mixture?

Hamish McPhee Jean-Yves Tourneret Misspecified parameter estimation for heavy-tailed noise models: Student's t-distribution or bivariance Gaussian mixture? 2026 110588 245 Signal Process. https://doi.org/10.1016/j.sigpro.2026.110588 db/journals/sigpro/sigpro245.html#McPheeT26 streams/journals/sigpro