Frequency-domain GLR detection of cyclostationary signals in frequency-selective channels

Font-Segura, Josep; Riba, Jaume; Villares, Javier; Vázquez, Gregori

doi:http://dx.doi.org/10.1109/ICASSP.2014.6854709

Frequency-domain GLR detection of cyclostationary signals in frequency-selective channels

Citation

Font-Segura J, Riba J, Villares J, Vázquez G. Frequency-domain GLR detection of cyclostationary signals in frequency-selective channels. In: 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP); 2014 May 4-9; Florence, Italy. [Piscataway, NJ]:IEEE;2014. p.5769-73. DOI: 10.1109/ICASSP.2014.6854709

Abstract

The frequency diversity exhibited by cyclostationary signals is exploited in this paper. A novel rank-1 frequency-domain representation of a digital waveform is proposed to address the generalized likelihood ratio (GLR) detection of a cyclostationary signal with unknown white noise. With the aim of avoiding the well-known sensitivity of cyclostationary-based detectors to frequency-selective fading channels, a parametric channel model based on the coherence bandwidth is adopted and incorporated in the GLR test. The proposed detector outperforms the classical spectral correlation magnitude detectors by exploiting the rank-1 structure of small spectral covariance matrices.

Description

Comunicació presentada a 2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, celebrada del 4 al 9 de Maig de 2014 a Florència, Itàlia.