Matched filter for vehicle crash discrimination

B - Operations – Transporting – 60 – R

Patent

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B60R 21/01 (2006.01)

Patent

CA 2169996

A matched filter (14) for vehicle crash discrimination system (10) utilizes at least one set of n scaling factors stored in a memory (24) to combine (22a-n) with a set of n time sequenced acceleration data samples. The values of the n scaling factors are selected to effect a desired vehicle crash discrimination strategy. The scaled, or filtered samples, are then summed (26) to generate an output signal suitable for use in a crash discrimination analysis. The matched filter (14) optimizes system design flexibility and reconfigurability by allowing different strategies to be implemented simply by selecting the appropriate scaling factors stored in the memory.

Filtre de correspondance (14) pour système de discrimination de données relatives aux accidents de véhicules (10) utilisant au moins une série de n facteurs d'échelle inscrits en mémoire (24) pour les combiner (22a-n) avec une série de n échantillons de données d'accélération séquentielles. Les valeurs des n facteurs d'échelle sont sélectionnées en vue de mettre en application la stratégie de discrimination souhaitée. Les échantillons mis en séries ou filtrés sont ensuite regroupés (26) pour générer un signal de sortie permettant d'effectuer une analyse discriminatoire. Le filtre de correspondance (14) accroît la souplesse sur les plans de la conception et de la reconfigurabilité du système en permettant la mise en oeuvre de diverses stratégies simplement en sélectionnant les facteurs d'échelles appropriés inscrits en mémoire.

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