Memorias de investigación
Artículos en revistas:
Automatic Understanding of ATC Speech: Study of Prospectives and Field Experiments for Several Controller Positions
Año:2011
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones,
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
Although there has been a lot of interest in recognizing and understanding Air Traffic Control (ATC) speech, none of the published works have obtained detailed field data results. We have developed a system able to identify the language spoken and recognize and understand sentences in both Spanish and English. We also present field results for several in-tower controller positions. To the best of our knowledge, this is the first time that field ATC speech (not simulated) is captured, processed and analyzed. The use of stochastic grammars allows variations in the standard phraseology that appear in field data. The robust understanding algorithm developed has 95% concept accuracy from ATC text input. It also allows changes in the presentation order of the concepts and the correction of errors created by the speech recognition engine improving it by 17% and 25% respectively, absolute in the percentage of fully correctly understood sentences for English and Spanish in relation to the percentages of fully correctly recognized sentences. The analysis of errors due to the spontaneity of the speech and its comparison to read speech is also carried out. A 96% word accuracy for read speech is reduced to 86% word accuracy for field ATC data for Spanish for the ?clearances? task confirming that field data is needed to estimate the performance of a system. A literature review and a critical discussion on the possibilities of speech recognition and understanding technology applied to ATC speech are also given.
Internacional
Si
JCR del ISI
Si
Título de la revista
Ieee Transactions on Aerospace And Electronic Systems
ISSN
0018-9251
Factor de impacto JCR
1,23
Información de impacto
Volumen
47
DOI
10.1109/TAES.2011.6034660
Número de revista
4
Desde la página
2709
Hasta la página
2730
Mes
OCTUBRE
Ranking
Q1
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tecnología del Habla
  • Departamento: Ingeniería Electrónica