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• The proposed power-weighted noncentral complex Gaussian distribution can represent diverse amplitude characteristics of individual source signals.technical 90%
• The proposed model is formulated directly on the complex plane and preserves the geometric structure of complex-valued observations.technical 90%
• The proposed model introduces nonlinear phase diffusion through a single shape parameter, enabling continuous control of distributional geometry.technical 90%
• The derived amplitude and power distributions of the proposed model encompass several widely used distributions, including Rice, Nakagami, and gamma distributions.technical 90%
• Experimental results on speech power spectra show that the proposed model consistently outperforms conventional distributions in terms of log-likelihood.result 90%
• The proposed distribution is a power-weighted noncentral complex Gaussian distribution.technical 95%
• The proposed model allows for continuous control of distributional geometry, ranging from arc-shaped diffusion to concentration of probability mass towards the origin.technical 90%

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