Time-Frequency Excision for GNSS Applications

Borio, Daniele; Camoriano, L.; Savasta, Simone; Presti, L. Lo

doi:10.1109/jsyst.2007.914914

Cited by 95 publications

(76 citation statements)

References 15 publications

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“…Borio et al . and later Sun et al . used STFT spectrogram and Wigner–Ville distribution (a quadratic technique) in order to detect receiver interferences.…”

Section: Introductionmentioning

confidence: 92%

GNSS Code Multipath Short-time Fourier Transform Analysis

Robustelli

Pugliano

2018

J Inst Navig

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Global Navigation Satellite System pseudorange multipath errors cannot be analyzed with the Fourier transform as they are non‐stationary; thus, other tools must be used. The objective of this paper is to investigate short‐time Fourier transform (STFT) performance in detecting Global Positioning System code multipath and analyzing its frequency content. Multipath estimation was achieved by using the code‐minus‐carrier and the pseudorange multipath observable. Two real datasets were analyzed. A first experiment was carried out using data provided by the Jiufeng (China) International GNSS Service station. The theoretical multipath time‐frequency signature was identified by analyzing time series provided by a simulator under the same conditions of the analyzed station. The spectrograms calculated on the real data and those calculated on the simulated data show the same pattern, assessing the effectiveness of the STFT performance. Based on these results, the STFT analysis was applied to a second dataset collected in a strong multipath scenario in Naples (Italy), allowing identification of the multipath sources. © 2018 Institute of Navigation

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“…Borio et al . and later Sun et al . used STFT spectrogram and Wigner–Ville distribution (a quadratic technique) in order to detect receiver interferences.…”

Section: Introductionmentioning

confidence: 92%

GNSS Code Multipath Short-time Fourier Transform Analysis

Robustelli

Pugliano

2018

J Inst Navig

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“…The goal is to select a transformed domain where the jamming signal is maximally concentrated leading to a clear pattern which can be more easily detected than in the time or frequency domain. Thus, the performance of such methods generally depend on the type of interference to be detected [50]. A critical issue with such family of techniques is the significant computational burden to be handled.…”

Section: B Digital Signal Processingmentioning

confidence: 99%

Impact and Detection of GNSS Jammers on Consumer Grade Satellite Navigation Receivers

et al. 2016

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| Jamming is the act of intentionally directing powerful electromagnetic waves toward a victim receiver with the ultimate goal of denying its operations. This paper describes the main types of Global Navigation Satellite System (GNSS) jammers and reviews their impact on GNSS receivers. A survey of state-of-the-art methods for jamming detection is also provided. Different detection approaches are investigated with respect to the receiver stage where they can be implemented.

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“…Aside from (or in combination with) time-frequency countermeasures [22]- [24] and receiver autonomous integrity monitoring (RAIM) consistency checks [25], which are proved to be effective against continuous wave interferences, the spatial diversity provided by a set of antenna elements enables a powerful tool for interference mitigation. From the vast literature available on antenna arrays, a few percentage of works address the particularities of GNSS receivers.…”

Section: Introductionmentioning

confidence: 99%

Robust GNSS Receivers by Array Signal Processing: Theory and Implementation

Fernández‐Prades¹,

Arribas²,

Closas³

2016

Proc. IEEE

104

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One of the main vulnerabilities of GNSS receivers is their exposure to intentional or unintentional jamming signals, which could even cause service unavailability. Several alternatives to counteract these effects were proposed in the literature, being the most promising those based on multiple antenna architectures. This is specially the case for high-grade receivers used in applications requiring reliability and robustness. This article provides an overview of the possible receiver architectures encompassing antenna arrays and the associated signal processing techniques. Emphasis is also put on the most typical implementation issues found when dealing with such technology. A thorough survey is complemented with a set of experiments, including real data processing by a working prototype, which exemplifies the above ideas.

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Time-Frequency Excision for GNSS Applications

Cited by 95 publications

References 15 publications

GNSS Code Multipath Short-time Fourier Transform Analysis

GNSS Code Multipath Short-time Fourier Transform Analysis

Impact and Detection of GNSS Jammers on Consumer Grade Satellite Navigation Receivers

Robust GNSS Receivers by Array Signal Processing: Theory and Implementation

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