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Identification and distributed fusion filter for multi-sensor networked systems with stochastic deception attacks

Published: 18 July 2024 Publication History

Abstract

In the multi-sensor networked systems, each sensor produces its local state estimate based on its own observations, and then sends it to a fusion center (FC) for fusion estimation. During transmitting local state estimates to the fusion center, the data may suffer from stochastic deception attacks from malicious attackers, where the probabilities of attacks and the variances of attack noises are unknown. Using a correlation function method (CFM), the probabilities of attacks and the variances of attack noises in individual channels are identified in parallel. The possibly attacked local state estimate is filtered to reproduce local state estimate in the FC. Using the matrix-weighted fusion algorithm in the linear unbiased minimum variance (LUMV) criterion, a distributed fusion filter is performed based on the reproduced local state estimates. A simulation example illustrates the validity of the algorithms.

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Information & Contributors

Information

Published In

cover image Digital Signal Processing
Digital Signal Processing  Volume 151, Issue C
Aug 2024
491 pages

Publisher

Academic Press, Inc.

United States

Publication History

Published: 18 July 2024

Author Tags

  1. Distributed fusion filter
  2. Identification
  3. Deception attack
  4. Correlation function
  5. Multi-sensor system

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