Error analysis of four-quadrant-based tracking sensor when dead zone is inevitable | Zendy

Xiaoyu Ma | Zendy; Jie Mu | Zendy; Rao Chang-Hui | Zendy

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Error analysis of four-quadrant-based tracking sensor when dead zone is inevitable

Author(s) -

Xiaoyu Ma,

Jie Mu,

Rao Chang-Hui

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.072903

Subject(s) - quadrant (abdomen) , centroid , tracking (education) , detector , tracking error , computer science , physics , optics , artificial intelligence , medicine , psychology , pedagogy , control (management) , pathology

Based on the basic principle of four-quadrant-based tracking sensor, the energy detecting rate, centroid detecting error and the displacement sensitivity of four-quadrant detector caused by noise or dead zone are analyzed in detail. The tracking error formula of four-quadrant-based tracking senor is put forward theoretically and verified experimentally. The results show that when the noises are constant, the tracking error of four-quadrant-based tracking senor depends on the ration between the width of Gauss facula and the width of dead zone of four-quadrant detector.

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