Software algorithm and hardware design for real-time implementation of new spectral estimator.

ABSTRACT:

Background

Real-time spectral analyzers can be difficult to implement for PC computer-based systems because of the potential for high computational cost, and algorithm complexity. In this work a new spectral estimator (NSE) is developed for real-time analysis, and compared with the discrete Fourier transform (DFT).

Method

Clinical data in the form of 216 fractionated atrial electrogram sequences were used as inputs. The sample rate for acquisition was 977 Hz, or approximately 1 millisecond between digital samples. Real-time NSE power spectra were generated for 16,384 consecutive data points. The same data sequences were used for spectral calculation using a radix-2 implementation of the DFT. The NSE algorithm was also developed for implementation as a real-time spectral anal

SUBMITTER: Ciaccio EJ 

PROVIDER: S-EPMC4057578 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature