TY  - JOUR
AU  - Pukėnas, K.
PY  - 2010/03/23
Y2  - 2025/01/02
TI  - Nonlinear Detection of Weak Pseudoperiodic Signals hidden under the Noise Floor
JF  - Elektronika ir Elektrotechnika
JA  - ELEKTRON ELEKTROTECH
VL  - 100
IS  - 4
SE  - 
DO  - 
UR  - https://eejournal.ktu.lt/index.php/elt/article/view/9881
SP  - 77-80
AB  - <p>The extraction of weak pseudoperiodic (deterministic) signals buried in a additive Gaussian noisy background is investigated by ap-plying the nonlinear signal detection algorithm, based on phase-space embedding technique, principal component analysis and power spectral analysis. By analyzing Rossler chaotic signals, it is demonstrated that the detection algorithm based on the singular value de-composition of the time-delayed covariance matrix of the reconstructed high-dimensional phase space matrix is able to detect weak pseudoperiodic signals completely hidden beneath the additive Gaussian noise floor at SNR up to –24 dB.. Ill. 4, bibl. 13 (in English; abstracts in English, Russian and Lithuanian).</p>
ER  -