期刊
JOURNAL OF MAGNETIC RESONANCE
卷 164, 期 1, 页码 136-144出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S1090-7807(03)00129-0
关键词
spectral estimation; resolution enhancement; regularized resolvent transform; filter diagonalization method; 2D J spectrum
The regularized resolvent transform (RRT) has been applied in a novel way to J-resolved spectra. This involves the direct calculation of the 45degrees projection without constructing the 2D spectrum. The results show a significant resolution enhancement over that obtained by the 45degrees projection of a 2D Fourier spectrum, even for much larger signals. In particular, RRT is able to resolve peaks that belong to different overlapping multiplets in a very crowded spectral region, where the conventional technique fails for any signal size. The resolving power of this method along with the significantly shorter signals required, make this method a powerful tool in spectral assignment. (C) 2003 Elsevier Science (USA). All rights reserved.
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