Kalman Filtering of Stationary Graph Signals

Fuente: arXiv
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Autori principali: Chen, Yang, Lee, Yeonju, Shi, Yao, Sun, Qiyu
Natura: Preprint
Pubblicazione: 2025
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author Chen, Yang
Lee, Yeonju
Shi, Yao
Sun, Qiyu
author_facet Chen, Yang
Lee, Yeonju
Shi, Yao
Sun, Qiyu
contents In this paper, we propose a novel definition of stationary graph signals, formulated with respect to a symmetric graph shift, such as the graph Laplacian. We show that stationary graph signals can be generated by transmitting white noise through polynomial graph channels, and that their stationarity is preserved under polynomial channel transmission. In this paper, we also investigate Kalman filtering to dynamical systems characterized by polynomial state and observation matrices. We demonstrate that Kalman filtering maintains the stationarity of graph signals, while effectively incorporating both system dynamics and noise structure. In comparison to the static inverse filtering method and naive zero-signal strategy, the Kalman filtering procedure yields more accurate and adaptive signal estimates, highlighting its robustness and versatility in graph signal processing.
format Preprint
id arxiv_https___arxiv_org_abs_2509_12605
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Kalman Filtering of Stationary Graph Signals
Chen, Yang
Lee, Yeonju
Shi, Yao
Sun, Qiyu
Signal Processing
In this paper, we propose a novel definition of stationary graph signals, formulated with respect to a symmetric graph shift, such as the graph Laplacian. We show that stationary graph signals can be generated by transmitting white noise through polynomial graph channels, and that their stationarity is preserved under polynomial channel transmission. In this paper, we also investigate Kalman filtering to dynamical systems characterized by polynomial state and observation matrices. We demonstrate that Kalman filtering maintains the stationarity of graph signals, while effectively incorporating both system dynamics and noise structure. In comparison to the static inverse filtering method and naive zero-signal strategy, the Kalman filtering procedure yields more accurate and adaptive signal estimates, highlighting its robustness and versatility in graph signal processing.
title Kalman Filtering of Stationary Graph Signals
topic Signal Processing
url https://arxiv.org/abs/2509.12605