Research on Algorithm and Operation Boundary for Fault Detection of Onboard GNSS Receiver

Nho, Hyung-Tae; Ahn, Jiyun; Sung, Sangkyung; Jun, Hyang-Sig; Yeom, Chan-Hong; Lee, Young Jae

doi:10.5139/jksas.2012.40.2.171

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Mohsen and ElYazeed invented a diagnosis approach of analog circuits based on dictionary and the excellent effectiveness of proposed algorithm was demonstrated by soft fault simulation [5]. Nho et al designed an algorithm and an operation boundary for fault detection of an onboard GNSS receiver [6].…”

Section: Introductionmentioning

confidence: 99%

A General Purpose Adaptive Fault Detection and Diagnosis Scheme for Information Systems with Superheterodyne Receivers

Song

et al. 2018

Complexity

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A superheterodyne receiver is a type of device universally used in a variety of electronics and information systems. Fault detection and diagnosis for superheterodyne receivers are therefore of critical importance, especially in noise environments. A general purpose fault detection and diagnosis scheme based on observers and residual error analysis was proposed in this study. In the scheme, two generalized regression neural networks (GRNNs) are utilized for fault detection, with one as an observer and the other as an adaptive threshold generator; faults are detected by comparing the residual error and the threshold. Then, time and frequency domain features are extracted from the residual error for diagnosis. A probabilistic neural network (PNN) acts as a classifier to realize the fault diagnosis. Finally, to mimic electromagnetic environments with noise interference, simulation model under different fault conditions with noise interferences is established to test the effectiveness and robustness of the proposed fault detection and diagnosis scheme. Results of the simulation experiments proved that the presented method is effective and robust in simulated electromagnetic environments.

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Section: Introductionmentioning

confidence: 99%

A General Purpose Adaptive Fault Detection and Diagnosis Scheme for Information Systems with Superheterodyne Receivers

Song

et al. 2018

Complexity

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UDRE Monitoring Analysis of Korean Satellite Navigation System

Park¹,

Ahn²,

Heo³

et al. 2015

Journal of the Korean Society for Aeronautical & Space Scie

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This paper is about analysis of UDRE monitoring method for Korean Satellite navigation system, which is the correction parameter of satellite measurements. New receiver clock bias and tropospheric delay error estimation method to make pseudo-range residual for UDRE monitoring is proposed. Saastamoinen model and Neill mapping function are used for estimate the tropospheric delay and EKF is used for estimgate the receiver clock bias.Through the satellite measurements and regional weather data received directly from the domestic is using for UDRE monitoring analysis, more suitable UDRE monitoring threshold can be deducted and it is expected to be utilized for fault detection technique of Korean Satellite Navigation System.

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Research on Algorithm and Operation Boundary for Fault Detection of Onboard GNSS Receiver

Cited by 2 publications

References 2 publications

A General Purpose Adaptive Fault Detection and Diagnosis Scheme for Information Systems with Superheterodyne Receivers

A General Purpose Adaptive Fault Detection and Diagnosis Scheme for Information Systems with Superheterodyne Receivers

UDRE Monitoring Analysis of Korean Satellite Navigation System

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