Accuracy of Flight Altitude Measured with Low-Cost GNSS, Radar and Barometer Sensors: Implications for Airborne Radiometric Surveys

Albéri, Matteo; Baldoncini, Marica; Bottardi, Carlo; Chiarelli, Enrico; Fiorentini, G.; Raptis, Kassandra Giulia Cristina; Realini, Eugenio; Reguzzoni, Mirko; Rossi, Lorenzo; Sampietro, Daniele; Strati, Virginia; Mantovani, Fabio

doi:10.3390/s17081889

Cited by 40 publications

(36 citation statements)

References 27 publications

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“…In [34], the median of standard deviation of the altitude determination was from 1.7 to 4.1 m. In turn, in the presented article in the flight test in Dęblin, the median value of the standard deviation for the determination of the flight altitude was 1.3 m. Therefore, the results in both works are similar and compatible.…”

Section: Parameter Sbas Apv-i Procedures Sbas Apv-ii Proceduressupporting

confidence: 68%

“…In accordance with the recommendations made by the ICAO, the aircraft positioning integrity in the SBAS APV-I and SBAS APV-II procedure, in the vertical plane, equaled 50 m and 20 m, respectively. Based on Table 4, the obtained integrity results in the air tests in Dęblin and in Chełm did not exceed the boundary performance of the VPL In [34], the median of standard deviation of the altitude determination was from 1.7 to 4.1 m. In turn, in the presented article in the flight test in Dęblin, the median value of the standard deviation for the determination of the flight altitude was 1.3 m. Therefore, the results in both works are similar and compatible.…”

Section: Parameter Sbas Apv-i Procedures Sbas Apv-ii Proceduresmentioning

confidence: 85%

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Monitoring Aircraft Position Using EGNOS Data for the SBAS APV Approach to the Landing Procedure

Krasuski¹,

Wierzbicki²

2020

Sensors

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The aim of this paper is to present the problem of the implementation of the EGNOS (European Geostationary Navigation Overlay Service) data for the processing of aircraft position determination. The main aim of the research is to develop a new computational strategy which might improve the performance of the EGNOS system in aviation, based on navigation solutions of an aircraft position, using several GNSS (Global Navigation Satellite System) onboard receivers. The results of an experimental test conducted by the Cessna 172 at EPDE (European Poland Deblin) (ICAO (International Civil Aviation Organization) code, N51°33.07’/E21°53.52’) aerodrome in Dęblin are presented and discussed in this paper. Two GNSS navigation receivers with the EGNOS positioning function for monitoring changes in the parameters of the aircraft position in real time during the landing phase were installed onboard a Cessna 172. Based on obtained research findings, it was discovered that the positioning accuracy was not higher than 2.1 m, and the integrity of positioning did not exceed 19 m. Moreover, the availability parameter was found to equal 1 (or 100%); also, no intervals in the continuity of the operation of the EGNOS system were recorded. In the paper, the results of the air test from Dęblin were compared with the parameters of positioning quality from the air test conducted in Chełm (ICAO code: EPCD, N51°04’57.8” E23°26’15”). In the air test in Chełm, the obtained parameters of EGNOS quality positioning were: better than 4.9 m for accuracy, less than 35.5 m for integrity, 100% for availability, and no breaks in continuity. Based on the results of the air tests in Dęblin and Chełm, it was concluded that the parameters of the EGNOS positioning quality in aviation for the SBAS (Satellite Based Augmentation System) APV (Approach to Vertical guidance) procedure were satisfied in accordance with the ICAO (International Civil Aviation Organization) requirements. The presented research method can be utilized in the SBAS APV landing procedure in Polish aviation. In this paper, the results of PDOP (Position Dilution of Precision) are presented and compared to the two air tests in Dęblin and Chełm. The maximum results of PDOP amounted to 1.4 in the air test in Dęblin, whereas they equaled 4.0 in the air test in Chełm. The paper also shows how the EGNOS system improved the aircraft position in relation to the only GPS solution. In this context, the EGNOS system improved the aircraft position from about 78% to 95% for each ellipsoidal coordinate axis.

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Section: Parameter Sbas Apv-i Procedures Sbas Apv-ii Proceduressupporting

confidence: 68%

Section: Parameter Sbas Apv-i Procedures Sbas Apv-ii Proceduresmentioning

confidence: 85%

Monitoring Aircraft Position Using EGNOS Data for the SBAS APV Approach to the Landing Procedure

Krasuski¹,

Wierzbicki²

2020

Sensors

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“…The authors aimed to develop a measuring system based on a low-cost GNSS receiver. Such a system should have enough accuracy for very short baselines, such as the takeoff and landing distances, analyzed in this work [15].…”

Section: Cost and Other Issuesmentioning

confidence: 99%

Application of GNSS/INS and an Optical Sensor for Determining Airplane Takeoff and Landing Performance on a Grassy Airfield

Pytka

Budzyński

Jóźwik

et al. 2019

Sensors

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The performance of a PZL 104 Wilga 35A airplane was determined and analyzed in this work. Takeoff and landing distances were determined by means of two different methods: one which utilized a Global Navigation Satellite System/Inertial Navigation System (GNSS/INS) sensor and another in which airplane ground speed was measured with the use of an optical non-contact sensor. Based on the airfield measurements, takeoff and landing distances as well as rolling resistance coefficients were determined for the used airplane on a grassy runway at the Radawiec airfield, located near Lublin, southeast Poland. The study was part of the "GARFIELD" project that is expected to deliver an online information system on grassy airfield conditions. It was concluded that both sensors were suitable for the aimed research. The results obtained in this study showed the effects of high grass upon the takeoff and landing performances of the test airplane. Also, the two methods were compared against each other, and the final results were compared to calculations of ground distances by means of the chosen analytical models.

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“…Precise navigation is a fundamental module for a wide range of applications such as autonomous driving, unmanned aerial vehicles (UAVs), and mobile mapping [1,2]. For centimeter-level high-accuracy positioning of the global positioning system (GPS), the carrier phase integer ambiguities have to be resolved correctly [3].…”

Section: Introductionmentioning

confidence: 99%

Tight Fusion of a Monocular Camera, MEMS-IMU, and Single-Frequency Multi-GNSS RTK for Precise Navigation in GNSS-Challenged Environments

et al. 2019

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Precise position, velocity, and attitude is essential for self-driving cars and unmanned aerial vehicles (UAVs). The integration of global navigation satellite system (GNSS) real-time kinematics (RTK) and inertial measurement units (IMUs) is able to provide high-accuracy navigation solutions in open-sky conditions, but the accuracy will be degraded severely in GNSS-challenged environments, especially integrated with the low-cost microelectromechanical system (MEMS) IMUs. In order to navigate in GNSS-denied environments, the visual–inertial system has been widely adopted due to its complementary characteristics, but it suffers from error accumulation. In this contribution, we tightly integrate the raw measurements from the single-frequency multi-GNSS RTK, MEMS-IMU, and monocular camera through the extended Kalman filter (EKF) to enhance the navigation performance in terms of accuracy, continuity, and availability. The visual measurement model from the well-known multistate constraint Kalman filter (MSCKF) is combined with the double-differenced GNSS measurement model to update the integration filter. A field vehicular experiment was carried out in GNSS-challenged environments to evaluate the performance of the proposed algorithm. Results indicate that both multi-GNSS and vision contribute significantly to the centimeter-level positioning availability in GNSS-challenged environments. Meanwhile, the velocity and attitude accuracy can be greatly improved by using the tightly-coupled multi-GNSS RTK/INS/Vision integration, especially for the yaw angle.

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Accuracy of Flight Altitude Measured with Low-Cost GNSS, Radar and Barometer Sensors: Implications for Airborne Radiometric Surveys

Cited by 40 publications

References 27 publications

Monitoring Aircraft Position Using EGNOS Data for the SBAS APV Approach to the Landing Procedure

Monitoring Aircraft Position Using EGNOS Data for the SBAS APV Approach to the Landing Procedure

Application of GNSS/INS and an Optical Sensor for Determining Airplane Takeoff and Landing Performance on a Grassy Airfield

Tight Fusion of a Monocular Camera, MEMS-IMU, and Single-Frequency Multi-GNSS RTK for Precise Navigation in GNSS-Challenged Environments

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