Signal recognition method using a low-cost microcontroller

G - Physics – 10 – L

Patent

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G10L 11/02 (2006.01)

Patent

CA 2620200

The invention relates to a signal recognition method which is suitable for time-limited, periodic signals. The inventive method consists in obtaining the envelope and taking samples of the instantaneous value of the amplitude thereof. According to the invention, different time parameters are used and a comparison is made with different reference matrices in order to identify members of one of said matrices with the use of a low-cost microcontroller, since the processing capacity required is that necessary to perform basic calculating operations which are integrated into the simplest microcontrollers.

L'invention concerne un procédé de reconnaissance de signaux, les signaux devant être limités dans le temps et périodiques. Ce procédé consiste à obtenir une enveloppe et à prélever des échantillons de la valeur instantanée de l'amplitude des signaux. Ce procédé est caractérisé en ce qu'au moyen de divers paramètres temporels et de leur comparaison avec différentes matrices de référence, il permet d'identifier leur appartenance à une desdites matrices à l'aide d'un microcontrôleur à bas coût, car la puissance de calcul nécessaire permet de réaliser des opérations basiques de calcul, incorporées dans les microcontrôleurs plus simples.

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