A Joint Particle Filter for Quaternion-Valued $\alpha$ -Stable Signals via the Characteristic Function
2022 IEEE 12th Sensor Array and Multichannel Signal Processing Workshop (SAM)(2022)
摘要
The filtering paradigm is revisited through the perspective of characteristic functions. This results in the derivation of a novel particle filtering technique for sequential estimation/tracking of quaternion-valued
$\alpha$
-stable random signals. Importantly, the derived particle filter incorporates an efficient information fusion format and collaborative/distributed estimation framework to accommodate the push toward use of sensor networks. The distributed setting provides for the distribution of computational complexity among agents of a sensor network, while allowing each agent to retain an estimate of the state. Furthermore, the quaternion-valued structure allows for the derivation of a rigorous algorithm that is advantageous when dealing with signals of a multidimensional nature commonly encountered in sensor arrays.
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关键词
$\alpha$-stable random signals,quaternion-valued signal processing,particle filtering,distributed estimation
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