Interference awareness and characterization for GNSS maritime applications

Marcos, Emilio Perez; Caizzone, Stefano; Konovaltsev, Andriy; Cuntz, Manuel; Elmarissi, Wahid; Yinusa, Kazeem A.; Meurer, Michael

doi:10.1109/plans.2018.8373469

Cited by 21 publications

(11 citation statements)

References 2 publications

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“…Interference events in the global navigation satellite system (GNSS) frequency bands are increasing [ 1 , 2 , 3 , 4 , 5 ]. Hence, reliable interference mitigation methods are required to remove these undesired signals and ensure safe GNSS navigation.…”

Section: Introductionmentioning

confidence: 99%

HDDM Hardware Evaluation for Robust Interference Mitigation

Garzia

Merwe

Rügamer

et al. 2020

Sensors

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Interference can significantly degrade the performance of global navigation satellite system (GNSS) receivers. Therefore, mitigation methods are required to ensure reliable operations. However, as there are different types of interference, robust, multi-purpose mitigation algorithms are needed. This paper describes the most popular state-of-the-art interference mitigation techniques. The high-rate DFT-based data manipulator (HDDM) is proposed as a possible solution to overcome their limitations. This paper presents a hardware implementation of the HDDM algorithm. The hardware HDDM module is integrated in three different receivers equipped with analog radio-frequency (RF) front-ends supporting signals with different dynamic range. The resource utilization and power consumption is evaluated for the three cases. The algorithm is compared to a low-end mass-market receiver and a high-end professional receiver with basic and sophisticated interference mitigation capabilities, respectively. Different type of interference are used to compare the mitigation capabilities of the receivers under test. Results of the HDDM hardware implementation achieve the similar or improved performance to the state of the art. With more complex interferences, like frequency hopping or pulsed, the HDDM shows even better performance.

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Section: Introductionmentioning

confidence: 99%

HDDM Hardware Evaluation for Robust Interference Mitigation

Garzia

Merwe

Rügamer

et al. 2020

Sensors

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“…In Newark, NJ, USA, the operation of an aviation ground-based augmentation system was disturbed by a PPD jammer used by a truck driver, regularly passing a road close to the airport [ 6 ]. Just recently, an international measurement campaign studying radio frequency interference (RFI) in the L1/E1 and L5/E5a bands on a container vessel was performed [ 7 ]. This study reports how frequent RFI events occur, even making the GNSS service unavailable in some cases.…”

Section: Introductionmentioning

confidence: 99%

Performance Characterization of GNSS/IMU/DVL Integration under Real Maritime Jamming Conditions

Ziebold

Medina

Romanovas³

et al. 2018

Sensors

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Currently Global Navigation Satellite Systems (GNSSs) are the primary source for the determination of absolute position, navigation, and time (PNT) for merchant vessel navigation. Nevertheless, the performance of GNSSs can strongly degrade due to space weather events, jamming, and spoofing. Especially the increasing availability and adoption of low cost jammers lead to the question of how a continuous provision of PNT data can be realized in the vicinity of these devices. In general, three possible solutions for that challenge can be seen: (i) a jamming-resistant GNSS receiver; (ii) the usage of a terrestrial backup system; or (iii) the integration of GNSS with other onboard navigation sensors such as a speed log, a gyrocompass, and inertial sensors (inertial measurement unit—IMU). The present paper focuses on the third option by augmenting a classical IMU/GNSS sensor fusion scheme with a Doppler velocity log. Although the benefits of integrated IMU/GNSS navigation system have been already demonstrated for marine applications, a performance evaluation of such a multi-sensor system under real jamming conditions on a vessel seems to be still missing. The paper evaluates both loosely and tightly coupled fusion strategies implemented using an unscented Kalman filter (UKF). The performance of the proposed scheme is evaluated using the civilian maritime jamming testbed in the Baltic Sea.

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“…The implemented beamforming algorithm is adaptive to the interference scenario such that the array pattern is not steered towards a predetermined direction but formed to maximize the C/N o . Reference [2] provides more details about a modified version of the receiver for maritime applications. V. SUMMARY An hemispherical dual-band conformal array and a robust array receiver for safety-critical GNSS applications was presented.…”

Section: Array Receivermentioning

confidence: 99%

Robust Satellite Navigation by Means of a Spherical Cap Conformal Antenna Array

Yinusa

Marcos

Caizzone

2018

2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)

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This contribution presents the design and performance of a dual-band spherical cap adaptive antenna array for safety-critical satellite navigation. The array consists of seven planar elements, flush-mounted in a spherical cap holder. Each element of the array is resonant at dual frequencies with adequate bandwidth to cover the GPS L1/L5 and Galileo E1/E5a/b frequency bands. The interference mitigation and beamforming performance of the array is demonstrated by means of an adaptive beamforming algorithm. The results show a strong potential of the antenna for applications where continuous system availability is essential.

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Interference awareness and characterization for GNSS maritime applications

Cited by 21 publications

References 2 publications

HDDM Hardware Evaluation for Robust Interference Mitigation

HDDM Hardware Evaluation for Robust Interference Mitigation

Performance Characterization of GNSS/IMU/DVL Integration under Real Maritime Jamming Conditions

Robust Satellite Navigation by Means of a Spherical Cap Conformal Antenna Array

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