Paper
27 June 2022 Application of a new variable-step LMS algorithm in semi-airborne electromagnetic receiving system
Jiang Han, Zhang Yiming, Wang He, Wang Xuhong
Author Affiliations +
Proceedings Volume 12253, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022); 122531H (2022) https://doi.org/10.1117/12.2639448
Event: Second International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022), 2022, Qingdao, China
Abstract
Since the Semi-Airborne frequency domain receiving system adopts uav carrying the receiving system to realize motion measurement in the air, the receiving system will inevitably introduce interference noise, including UAV motion noise, environmental noise and human noise, etc. In order to improve the signal-to-noise ratio, the adaptive noise elimination technology is used to cancel the noise. The step size of traditional filter is a fixed value. Although the convergence speed is guaranteed, the steady-state error after convergence fluctuates greatly. In this paper, a new mathematical model of step factor and error signal is proposed by transforming sine function and introducing variable parameter R factor. The algorithm is applied to the Semi-Airborne electromagnetic receiving system, and the collected data are filtered by the algorithm, and the expected experimental data are obtained.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiang Han, Zhang Yiming, Wang He, and Wang Xuhong "Application of a new variable-step LMS algorithm in semi-airborne electromagnetic receiving system", Proc. SPIE 12253, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022), 122531H (27 June 2022); https://doi.org/10.1117/12.2639448
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KEYWORDS
Digital filtering

Electronic filtering

Interference (communication)

Electromagnetism

Signal to noise ratio

Optical filters

Unmanned aerial vehicles

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