Improvement of the Analog Data Acquisition Accuracy Based on the Oversampling Technology

Abstract:

Unmanned aerial vehicle (UAV) flight control system often needs the acquisition of sensor signal in analog form. In that case, the accuracy of the analog signal acquisition has a very important influence on the UAV flight control system. During the collection of analog signal, noise can have a negative effect on the accuracy of this collection, so we need to filter out the noise. However, some kinds of noise cannot be filtered out with hardware filters, which makes it necessary to combine oversampling technology and digital filters. In this paper, we make use of own-designed circuit to discuss some relative problems about the improvement of the analog data acquisition accuracy with oversampling technology which Verify the effectiveness of the oversampling method by comparing the traditional sampling method and the oversampling technology.

• Periodical: Applied Mechanics and Materials (Volumes 668-669)
• Pages: 873-878
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.668-669.873
• Online since: October 2014
• Authors: Chun Song Yang, Xin Chen, Xun Hong Lv
• Keywords: Analog Signal, Filter, Noise, Oversampling

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