Iniciar sesión
Registrarse
Restablecer contraseña
Publicar y Distribuir
Soluciones de Publicación
Soluciones de Distribución
Temas
Arquitectura y diseño
Artes
Ciencias Sociales
Ciencias de la Información y Bibliotecas, Estudios del Libro
Ciencias de la vida
Ciencias de los materiales
Deporte y tiempo libre
Estudios clásicos y del Cercano Oriente antiguo
Estudios culturales
Estudios judíos
Farmacia
Filosofía
Física
Geociencias
Historia
Informática
Ingeniería
Interés general
Ley
Lingüística y semiótica
Literatura
Matemáticas
Medicina
Música
Negocios y Economía
Química
Química industrial
Teología y religión
Publicaciones
Revistas
Libros
Actas
Editoriales
Blog
Contacto
Buscar
EUR
USD
GBP
Español
English
Deutsch
Polski
Español
Français
Italiano
Carrito
Home
Revistas
Journal of Electrical Bioimpedance
Volumen 9 (2018): Edición 1 (January 2018)
Acceso abierto
On the selection of excitation signals for the fast spectroscopy of electrical bioimpedance
Jaan Ojarand
Jaan Ojarand
y
Mart Min
Mart Min
| 31 dic 2018
Journal of Electrical Bioimpedance
Volumen 9 (2018): Edición 1 (January 2018)
Acerca de este artículo
Artículo anterior
Artículo siguiente
Resumen
Artículo
Figuras y tablas
Referencias
Autores
Artículos en este número
Vista previa
PDF
Cite
Compartir
Publicado en línea:
31 dic 2018
Páginas:
133 - 141
Recibido:
11 dic 2018
DOI:
https://doi.org/10.2478/joeb-2018-0018
Palabras clave
Impedance measurement
,
bioimpedance
,
signal design
,
signal to noise ratio
,
optimization
© 2018 J. Ojarand, M. Min published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig.1
Simplified structure of the EBI spectroscopy system.
Fig.2
Waveform (a) and magnitude spectrum (b) of the pulse with relative duration t = (64/1000).
Fig.3
Waveform (a) and magnitude spectrum (b) of the exponentially modulated short chirp with relative duration t = 0.5.
Fig.4
Rectangular waveform (a) and its magnitude spectrum (b).
Fig.5
Waveforms (a) and magnitude spectrum (b) of the step waveform with a rise time of 1/500 of the signal period. Note that the first part of the time scale is magnified by 20. Diagonal hatch illustrates the energy content of the signal starting from zero and cross-hatches the energy content of the signal starting from -1.
Fig.6
Waveforms of the sinusoidal (a) and signum-chirp (b).
Fig.7
Relative deviation of RMS magnitudes of the frequency components from their mean values of the linear sinusoidal chirp with normalized frequencies in the range from 10 to 50.
Fig.8
Relative deviation of RMS magnitudes of frequency components from their mean values of the signum chirp with normalized frequencies in the range from 10 to 50.
Fig.9
Waveform of the 3-rd order MLBS (a) and its magnitude spectrum (b).
Fig.10
BMS waveform (a) and its magnitude spectrum (b) with four equally emphasized components (frequency bins 1, 3, 5, 7).
Fig.11
BMS (a) and its magnitude spectrum (b) with rising levels of components (frequency bins 1, 3, 5, 7).
Fig.12
CF of the optimized multisine signal with a consequent frequency distribution (i = 1,2,3,4 …. k), for a k in the range from 4 to 40. A green line level corresponds to the CF of a single sine wave.
Fig.13
Normalized RMS magnitudes of consecutively and logarithmically distributed frequency components of optimized multisines (MS, dashed lines) and BMS (solid lines) vs. a number of frequency decades a signal covers.