Distributed Recursive Filtering with Bit Rate Constraints and Cross-Correlated Noises over Sensor Networks

This paper focuses on the distributed filtering issue for a type of discrete-time systems with cross-correlated measurement noises under constrained bit rate. The system under consideration is subject to cross-correlated measurement noises, that is, for different sensor nodes, the measurement noises...

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Published in:Youth Academic Annual Conference of Chinese Association of Automation (Online) pp. 465 - 470
Main Authors: Wen, Pengyu, Wang, Hanbo, Yang, Fan, Dong, Hongli
Format: Conference Proceeding
Language:English
Published: IEEE 07.06.2024
Subjects:
binary encoding scheme
Bit rate
bit rate constraints
cross-correlated noises
Delay effects
Discrete-time systems
Distributed filtering
Filtering
Filtering algorithms
Noise
Upper bound
ISSN:2837-8601
Online Access:Get full text
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Abstract This paper focuses on the distributed filtering issue for a type of discrete-time systems with cross-correlated measurement noises under constrained bit rate. The system under consideration is subject to cross-correlated measurement noises, that is, for different sensor nodes, the measurement noises are a-step cross-correlated. For digital communication, the binary encoding scheme is employed to encode the signals into binary bit strings, in which the random bit errors induced by the channel noise may occur during the propagation of the binary bit string via the memoryless binary symmetric channel. To characterize the occurrence of the bit errors, a set of Bernoulli distributed random variables is adopted. Furthermore, to better reflect the practice, the time delays in the coding-decoding process is incorporated in the filter design. Considering the impacts of the cross-correlated noises, constrained bit rates and bit errors, an upper bound of the filtering error covariance matrix is obtained and the filter parameters are acquired by minimizing the upper bound. Finally, a simulation example is conducted to demonstrate the effectiveness of the proposed algorithm.
AbstractList This paper focuses on the distributed filtering issue for a type of discrete-time systems with cross-correlated measurement noises under constrained bit rate. The system under consideration is subject to cross-correlated measurement noises, that is, for different sensor nodes, the measurement noises are a-step cross-correlated. For digital communication, the binary encoding scheme is employed to encode the signals into binary bit strings, in which the random bit errors induced by the channel noise may occur during the propagation of the binary bit string via the memoryless binary symmetric channel. To characterize the occurrence of the bit errors, a set of Bernoulli distributed random variables is adopted. Furthermore, to better reflect the practice, the time delays in the coding-decoding process is incorporated in the filter design. Considering the impacts of the cross-correlated noises, constrained bit rates and bit errors, an upper bound of the filtering error covariance matrix is obtained and the filter parameters are acquired by minimizing the upper bound. Finally, a simulation example is conducted to demonstrate the effectiveness of the proposed algorithm.
Author Wen, Pengyu
Wang, Hanbo
Dong, Hongli
Yang, Fan
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  givenname: Hongli
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  organization: Northeast Petroleum University,National Key Laboratory of Continental Shale Oil Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education,Daqing,China
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Snippet This paper focuses on the distributed filtering issue for a type of discrete-time systems with cross-correlated measurement noises under constrained bit rate....
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StartPage 465
SubjectTerms binary encoding scheme
Bit rate
bit rate constraints
cross-correlated noises
Delay effects
Discrete-time systems
Distributed filtering
Filtering
Filtering algorithms
Noise
Upper bound
Title Distributed Recursive Filtering with Bit Rate Constraints and Cross-Correlated Noises over Sensor Networks
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