A system for carrying out a tracheal intubation guided to a subject, comprising: - an autonomous lighting source (40, 50) adapted to provide a modulated lighting output, the modulated lighting output having a predetermined maximum intensity and being periodically modulated between a state of maximum intensity and a state of minimum intensity at a predetermined frequency, the autonomous light source being adapted to be applied externally to the subject's neck in the region of the subject's larynx； - an optical detection system (52) adapted to receive a flow of image data from an endotracheal positioning device within the throat of the subject, including the optical image data data relating to the modulated lighting output that has penetrated the trachea of the subject； and - a control system (53) adapted to be provided with the predetermined frequency of the modulated lighting output and adapted to carry out signal processing on the image data flow based on the predetermined frequency, and adapted to generate a modified flow of image output data that has an adjusted apparent detected intensity of the modulated lighting output, - where the autonomous lighting source is completely independent and not connected to the control system and does not receive a feedback signal from the control system. control.Un sistema para llevar a cabo una intubación traqueal guiada a un sujeto, que comprende: - una fuente (40, 50) de iluminación autónoma adaptada para proporcionar una salida de iluminación modulada, teniendo la salida de iluminación modulada una intensidad máxima predeterminada y estando periódicamente modulada entre un estado de intensidad máxima y un estado de intensidad mínima a una frecuencia predeterminada, estando la fuente de iluminación autónoma adaptada para ser aplicada externamente al cuello del sujeto en la región de la laringe del sujeto； - un sistema (52) de detección óptica adaptado para recibir un flujo de datos de imagen de un dispositivo de colocación en
