(1) Key Laboratory for Radar Signal Processing, Xidian University, 710071 Xi’an
Abstract:
Higher-order almost cyclostationary complex processes are complex random signals with almost periodically time-varying statistics,
which is important to the research of non-Gaussian signals in information system. In this paper, smoothed polyperiodograms
are proposed for related to cyclic polyspectral estimation and are shown to be consistent and asymptotically complex normal.
Asymptotic covariance expressions are derived along with their computable forms.