By Topic

A high precision digital filter for the analysis of EEG-type continuous spectrum data

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Noda, A. ; Dept. of Ind. Eng. & Manage., Tokyo Inst. of Technol., Japan ; Hirano, T.

A novel method is proposed to decrease the error of one-dimensional DFTDF (discrete Fourier transform digital filtering) caused by the leakage distortion of the DFT. This distortion depends mainly and sensitively on the DFT span-width, i.e. the length of the time-domain raw data for DFT. The proposed method utilizes this data length dependence of the DFTDF error and is based on parallel multimodal sampling to get a set of different span-width DFTDF results of the same raw data. The point is that these filtering errors of individual DFTDF signals are almost statistically independent of one another, and these different span-width DFTDF signals of the same raw data will be averaged to obtain a more precise result, which will be referred to as the parallel multimodal sampling digitally filtered (PMSDF) result. This averaging is performed by a resampling technique. For each set of DFTDF signals, computational simulation showed that the error of PMSDF result was always much less than the worst-case error of the set of DFTDF signals and was almost always less than the average error rate of the set of DFTDF signals

Published in:

Circuits and Systems, 1991., IEEE International Sympoisum on

Date of Conference:

11-14 Jun 1991