Title :
On parameters of Null Space Pursuit based on frequency resolution
Author :
Zhenhua Dong ; Weiping Hu
Author_Institution :
Coll. of Electron. Eng., Guangxi Normal Univ., Guilin, China
Abstract :
Null Space Pursuit (NSP) is a novel adaptive decomposition method based on singular local linear operator theory. Similary to empirical mode decomposition (EMD), NSP decomposes a signal into a series of local narrow band signals adaptively. This paper employed the numerical methods to investigate the influence of NSP initial values of parameters and to reveal the resolution between NSP initial values and their corresponding frequency resolution; finally the paper compares the decomposition results of EMD and NSP.
Keywords :
adaptive signal processing; matrix algebra; signal resolution; EMD; NSP initial values; NSP parameters; adaptive signal decomposition; empirical mode decomposition; frequency resolution; local narrow band signals; null space pursuit parameters; numerical methods; singular local linear operator theory; Educational institutions; Empirical mode decomposition; Null space; Signal resolution; Time frequency analysis; Parameters study; empirical mode decomposition (EMD); null space pursuit (NSP); requency resolution;
Conference_Titel :
Image and Signal Processing (CISP), 2012 5th International Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4673-0965-3
DOI :
10.1109/CISP.2012.6469915
