Title :
An objective performance measure in multiresolution signal decomposition
Author :
Akansu, Ali N. ; Caglar, Hakan ; Liu, Yipeng
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
Presents an analysis of band energies and evaluates the effects of aliasing in perfect reconstruction (PR) multirate systems. An objective performance measure called nonaliasing energy ratio (NER) is defined. The merit of the new measure is emphasized with performance comparisons of popular block transforms and 2-band PR-QMF based hierarchical filter banks. It is shown that the new measure complements the widely used energy compaction measure
Keywords :
antialiasing; digital filters; filtering and prediction theory; signal processing; NER; PR-QMF based hierarchical filter banks; aliasing; band energies; energy compaction measure; multiresolution signal decomposition; nonaliasing energy ratio; objective performance measure; perfect reconstruction multirate systems; quadrature mirror filter; Band pass filters; Compaction; Energy measurement; Energy resolution; Filter bank; Frequency; Interpolation; Matrix decomposition; Signal processing; Signal resolution;
Journal_Title :
Signal Processing, IEEE Transactions on
