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Updated: Jan 9, 2026

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Un filtro de Kalman federado adaptativo mejorado basado en bayesiano variacional para sistemas de navegación

Yuwei Yan1, Jing Yang1

  • 1School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China.

Sensors (Basel, Switzerland)
|December 11, 2025
PubMed
Resumen

Este estudio presenta un filtro de Kalman federado (FKF) mejorado que utiliza un filtro de Kalman adaptativo (IVBAKF) para mejorar la precisión de la navegación del vehículo. El método maneja eficazmente el ruido del sensor, reduciendo significativamente los errores de los parámetros de navegación en condiciones difíciles.

Palabras clave:
filtro adaptativofiltro de Kalman federadofusión de informaciónnavegación integradabayesiano variacional

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Área de la Ciencia:

  • Ingeniería de Sistemas de Navegación
  • Procesamiento de Señales
  • Teoría de Control

Sus antecedentes:

  • Los sistemas de navegación de vehículos requieren una fusión de datos robusta de sensores con diferentes frecuencias y tipos.
  • La falta de coincidencia del ruido de medición del sensor degrada la precisión de las soluciones de navegación integradas.
  • Los métodos existentes luchan con características de ruido inciertas y variables en el tiempo.

Objetivo del estudio:

  • Desarrollar un marco avanzado de fusión de información para la navegación de vehículos.
  • Mejorar la precisión de la estimación abordando la falta de coincidencia de las características del ruido del sensor.
  • Mejorar la robustez de los sistemas de navegación integrados en entornos dinámicos.

Principales métodos:

  • Se diseñó un marco de fusión de información basado en el filtro de Kalman federado (FKF).
  • Se integró un filtro de Kalman adaptativo mejorado basado en bayesiano variacional (IVBAKF) como módulo de estimación central.
  • Se utilizó un factor de olvido adaptativo, guiado por la innovación de la medición, para estimar la matriz de covarianza del ruido de medición (MNCM).

Principales resultados:

  • El IVBAKF propuesto estima eficazmente la MNCM, mitigando el ruido de medición incierto.
  • El algoritmo demostró un rendimiento superior en comparación con un FKF de referencia.
  • Se logró una reducción promedio del 43,21 % en los errores cuadráticos medios (RMSE) de los parámetros de navegación bajo ruido incierto y variable en el tiempo.

Conclusiones:

  • El algoritmo propuesto basado en FKF con IVBAKF mejora la precisión y la robustez de la navegación.
  • La estimación adaptativa de la MNCM es crucial para manejar el ruido de medición complejo.
  • El método proporciona soluciones de navegación estables y confiables en entornos operativos desafiantes.