TY - GEN
T1 - New concepts in narrowband and wideband Weyl correspondence time-frequency techniques
AU - Iem, Byeong Gwan
AU - Papandreou-Suppappola, Antonia
AU - Boudreaux-Bartels, G. Faye
PY - 1998
Y1 - 1998
N2 - We propose the new P/sub 0/-Weyl symbol to analyze system induced time shifts and scale changes on the input signal. This new Weyl symbol (WS) is useful in wideband signal analysis. We also propose new WS as tools for analyzing systems which produce dispersive frequency shifts on the signal. We obtain these generalized, frequency-shift covariant WS by warping conventional, narrowband WS. Using the new, generalized WS, we provide a formulation for the Weyl correspondence for linear systems with instantaneous frequency characteristics matched to user specified characteristics. We also propose a new interpretation of linear signal transformations as weighted superpositions of nonlinear frequency shifts on the signal. Application examples in signal analysis and detection demonstrate the advantages of our new results.
AB - We propose the new P/sub 0/-Weyl symbol to analyze system induced time shifts and scale changes on the input signal. This new Weyl symbol (WS) is useful in wideband signal analysis. We also propose new WS as tools for analyzing systems which produce dispersive frequency shifts on the signal. We obtain these generalized, frequency-shift covariant WS by warping conventional, narrowband WS. Using the new, generalized WS, we provide a formulation for the Weyl correspondence for linear systems with instantaneous frequency characteristics matched to user specified characteristics. We also propose a new interpretation of linear signal transformations as weighted superpositions of nonlinear frequency shifts on the signal. Application examples in signal analysis and detection demonstrate the advantages of our new results.
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U2 - 10.1109/ICASSP.1998.681752
DO - 10.1109/ICASSP.1998.681752
M3 - Conference contribution
AN - SCOPUS:0031625076
SN - 0780344286
SN - 9780780344280
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 1573
EP - 1576
BT - Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Y2 - 12 May 1998 through 15 May 1998
ER -