QUADRATURE-TO-DIRECTIONAL FORMAT CONVERSION OF DOPPLER SIGNALS USING DIGITAL METHODS

Authors
AYDIN N FAN L EVANS DH
Citation
N. Aydin et al., QUADRATURE-TO-DIRECTIONAL FORMAT CONVERSION OF DOPPLER SIGNALS USING DIGITAL METHODS, Physiological measurement, 15(2), 1994, pp. 181-199
Citations number
14
Categorie Soggetti
Biophysics,"Engineering, Biomedical",Physiology
Journal title
Physiological measurement → ACNP
ISSN journal
09673334
Volume
15
Issue
2
Year of publication
1994
Pages
181 - 199
Database
ISI
SICI code
0967-3334(1994)15:2<181:QFCODS>2.0.ZU;2-J
Abstract
Four possible quadrature-to-directional format conversion methods usin g digital techniques are described. These are the phasing-filter techn ique, the extended Weaver receiver technique, the Hilbert transform in the frequency domain, and the complex FFT. All methods are implemente d to give separated time domain outputs as well as frequency domain ou tputs. The theoretical descriptions are verified by practical implemen tations. Each of the methods has been implemented in real-time using a commercially available digital signal processing board.