Study of rail damage diagnosis and localization method based on intelligent wireless acoustic sensor network

Yang, Nengfei; Yin, Wenjie

doi:10.1016/j.measurement.2023.113032

Cited by 1 publication

(1 citation statement)

References 33 publications

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“…Localization and positioning in GNSS-denied areas are primary services for many emerging applications, including indoor pedestrian tracking [1], robotics [2], UAV tracking [3], healthcare [4], engineering [5], wildlife protection [6], and security [7], just to name a few. In particular, passive time difference of arrival (TDOA) emitter localization methods are widely used in many application fields, e.g., geolocation [8][9][10], mobile user tracking [11], speaker localization [12], damage localization [13], or acoustic shooter localization [7,[14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Passive TDOA Emitter Localization Using Fast Hyperbolic Hough Transform

Simon,

Leitold

2023

Applied Sciences

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A fast Hough transform (HT)-based hyperbolic emitter localization system is proposed to process time difference of arrival (TDOA) measurements. The position-fixing problem is provided for cases where the source is known to be on a given plane (i.e., the elevation of the source is known), while the sensors can be deployed anywhere in the three-dimensional space. The proposed solution provides fast evaluation and guarantees the determination of the global optimum. Another favorable property of the proposed solution is that it is robust against faulty sensor measurements (outliers). A fast evaluation method involving the hyperbolic Hough transform is proposed, and the global convergence property of the algorithm is proven. The performance of the algorithm is compared to that of the least-squares solution, other HT-based solutions, and the theoretical limit (the Cramér–Rao lower bound), using simulations and real measurement examples.

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