Title :
Subband coding of cyclostationary signals with static bit allocation
Author :
Pandharipande, Ashish ; Dasgupta, Soura
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa Univ., Iowa City, IA, USA
Abstract :
We consider the optimal orthonormal subband coding of zero mean wide sense cyclostationary signals (WSCS), with N-periodic second order statistics. An M-channel uniform filterbank, with N-periodic analysis and synthesis filters, is used as the subband coder. A static bit allocation scheme is used. An average variance condition is used to measure the output distortion. The conditions for maximizing the coding gain parallel those for the case when the signals are wide sense stationary (WSS) and the analysis and synthesis filters and the bit allocation time invariant.
Keywords :
channel bank filters; encoding; filtering theory; statistical analysis; M-channel uniform filterbank; N-periodic analysis filters; N-periodic second order statistics; N-periodic synthesis filters; WSCS; average variance condition; coding gain maximisation; cyclostationary signals; optimal orthonormal subband coding; output distortion measurement; static bit allocation; subband coder; subband coding; time invariant bit allocation; zero mean wide sense cyclostationary signals; Additive noise; Bit rate; Cities and towns; Distortion measurement; Eigenvalues and eigenfunctions; Filter bank; Linear matrix inequalities; Signal analysis; Signal synthesis; Statistics;
Journal_Title :
Signal Processing Letters, IEEE
