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Performance comparison of differential GNSS, EGNOS and SDCM in different user scenarios in Finland 芬兰不同用户场景下差分GNSS、EGNOS和SDCM的性能比较
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530550
Simo Marila, M. Z. H. Bhuiyan, J. Kuokkanen, H. Koivula, H. Kuusniemi
{"title":"Performance comparison of differential GNSS, EGNOS and SDCM in different user scenarios in Finland","authors":"Simo Marila, M. Z. H. Bhuiyan, J. Kuokkanen, H. Koivula, H. Kuusniemi","doi":"10.1109/EURONAV.2016.7530550","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530550","url":null,"abstract":"Positioning errors of stand-alone GNSS can be reduced with different real-time augmentation approaches. For many navigation and positioning applications, Satellite-Based Augmentation System (SBAS) and Differential code-based GNSS (DGNSS) can offer substantial improvement in the positioning accuracy. Finland is covered by EGNOS (European Geostationary Overlay Service) even though it is lying at the north-east margin of the coverage area. In addition to EGNOS, the neighboring SBAS system SDCM (System for Differential Corrections and Monitoring) has monitoring stations near Finland. In this work, the researchers at the Finnish Geospatial Research Institute (FGI) conducted some field experiments with mentioned SBASs and National Land Survey of Finland's (NLS) DGNSS service in order to find out reachable accuracies and rough estimates of availability in varying positioning conditions. Interest to SDCM grew due to its vicinity from Finland and also partly due to its ability to provide GLONASS corrections which EGNOS has not yet been able to offer.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122816757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Ambiguity resolution on ionospheric gradient estimation and detection 电离层梯度估计与检测的歧义解决
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530547
B. Lubbers
{"title":"Ambiguity resolution on ionospheric gradient estimation and detection","authors":"B. Lubbers","doi":"10.1109/EURONAV.2016.7530547","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530547","url":null,"abstract":"For safety-of-life applications, such as landing an aircraft, the detection of ionospheric gradients is important both for the integrity of single frequency GBAS users as the availability for dual frequency users. In this paper an ionospheric gradient monitor is proposed, based on carrier phase observations. Carrier phase observations are very precise, but ambiguous. Although in aviation carrier phase ambiguity resolution is not yet commonly accepted, this research investigates whether it is possible to solve the ambiguities with acceptable success-rates in order to estimate and detect ionospheric gradients.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"82 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131770043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An analysis of a gyro-free inertial system for INS/GNSS navigation 一种用于INS/GNSS导航的无陀螺惯性系统分析
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530560
D. Cucci, Omar García Crespillo, Mehran Khaghani
{"title":"An analysis of a gyro-free inertial system for INS/GNSS navigation","authors":"D. Cucci, Omar García Crespillo, Mehran Khaghani","doi":"10.1109/EURONAV.2016.7530560","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530560","url":null,"abstract":"Although the concept of determining angular velocity out of the readings of multiple, displaced accelerometers is not new, apparently it has not yet matured into practical technologies. A new generation of low-cost MEMS accelerometers, which is expected to breakthrough in the next years, may enable gyro-free navigation in small platforms such as UAVs, ground vehicles and small planes. In this work we analyze a Gyro-Free Inertial Navigation System (GF-INS) employing four triads of accelerometers in a Distributed Redundant IMU configuration (DRIMU). We investigate the statistical properties of the angular velocity estimator by means of simulations and we speculate on the noise level requirements for the accelerometers that would allow a gyro-free navigation system to match the performances of a conventional IMU. Furthermore, we investigate the performance of using the gyro-free angular velocities estimator in combination with GNSS for navigation in a classical error-state EKF.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117247114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Frequency divided adaptive Kalman filter in guidance law recognition 分频自适应卡尔曼滤波在制导律识别中的应用
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530557
Du Run-le, Liu Jia-Qi, Li Zhi-feng, Niu Zhen-hong
{"title":"Frequency divided adaptive Kalman filter in guidance law recognition","authors":"Du Run-le, Liu Jia-Qi, Li Zhi-feng, Niu Zhen-hong","doi":"10.1109/EURONAV.2016.7530557","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530557","url":null,"abstract":"Recognition of guidance law on non-cooperative vehicle is drawing research interest among the literature, while insufficient accuracy of modeling and measurement makes it a hard problem. In this paper, a Frequency Divided Adaptive Kalman Filter is proposed to implement guidance law recognition. In FD-AKF, a Low Pass Filter is applied to extract the noise directly from state vector and measurement vector, and estimate the co-variance matrices of observation noise and prediction noise online. Without intertwined iterating equation of prediction noise and observation noise, FD-AKF decouples the estimation on prediction noise and observation noise, and thus avoids the risk of bias and divergence. Simulation results show that, FD-AKF improves robustness of guidance recognition significantly over Kalman Filter and Sage-Husa.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115801077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Quality assessment method of GNSS signals base on multivariate dilution of precision 基于多变量精度稀释的GNSS信号质量评估方法
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530565
Yin Lu, Deng Zhongliang, Zhu Di, Hu Enwen
{"title":"Quality assessment method of GNSS signals base on multivariate dilution of precision","authors":"Yin Lu, Deng Zhongliang, Zhu Di, Hu Enwen","doi":"10.1109/EURONAV.2016.7530565","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530565","url":null,"abstract":"The signal quality is a key factor that affects positioning accuracy of GNSS. The pseudorange accuracy (UERE) of each satellite is greatly affected by the urban environments. Meanwhile, different satellite signals have different pseudorange measurement accuracies. A quality assessment method of GNSS signals based on Multivariate Dilution of Precision (MDOP) is proposed in this paper. It combines the factors that affect the pseudorange accuracy into a function and assesses the signal qualities of GNSS multi-system positioning with the GDOP. The simulation results show the effectiveness of the method.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131163249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Reliability testing for multiple GNSS measurement outlier detection 多GNSS测量异常点检测的可靠性测试
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530540
A. Innac, M. Z. H. Bhuiyan, S. Soderholm, H. Kuusniemi, S. Gaglione
{"title":"Reliability testing for multiple GNSS measurement outlier detection","authors":"A. Innac, M. Z. H. Bhuiyan, S. Soderholm, H. Kuusniemi, S. Gaglione","doi":"10.1109/EURONAV.2016.7530540","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530540","url":null,"abstract":"Due to a rapid development of several Global Navigation Satellite Systems (GNSS), multiple constellations are available to enhance navigation performance and safety. With the growing number of satellite constellations, the task of the GNSS navigation is to deal with the differences among systems but, on the other hand, more great levels of integrity and satellite visibility can be expected. GNSS navigation applications have difficulties in signal degraded scenarios where the GNSS solution can be degraded by errors such as multipath and signals being obscured. RAIM (Receiver Autonomous Integrity Monitoring) is a method necessary for assessing integrity performance levels mainly in safety-critical applications. Classical RAIM techniques are based on the assumption model of a single outlier in the measurements, but with a future of higher satellite availability and for navigation conducted in urban canyon scenarios, the single outlier assumption is unrealistic. Therefore, reliability monitoring techniques need to be modified to be suitable for use cases with high signal degradation levels. The FDE (Fault Detection and Exclusion) schemes analysed in this research for reliability monitoring are the “Observation Subset Testing” and a modified approach based on a w-test (called in this paper Multiple Faults De-weighting-MFD). In order to improve their performance a novel Channel Quality Index (CQI) parameter was used to describe the measurement confidence and quality. To validate the proposed approaches, tests have been performed using simulated data with GPS, Galileo and BeiDou signals in a multipath environment.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116459585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
STAMP-Mar based safety management of maritime navigation in the Gulf of Finland (Baltic Sea) 芬兰湾(波罗的海)基于STAMP-Mar的海上航行安全管理
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530538
R. Aps, M. Fetissov, F. Goerlandt, M. Kopti, P. Kujala
{"title":"STAMP-Mar based safety management of maritime navigation in the Gulf of Finland (Baltic Sea)","authors":"R. Aps, M. Fetissov, F. Goerlandt, M. Kopti, P. Kujala","doi":"10.1109/EURONAV.2016.7530538","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530538","url":null,"abstract":"The Baltic Sea Area is a globally unique and sensitive brackish-water ecosystem. More than 2,000 ships are on the way in the Baltic Sea Area on an average day. The Baltic Sea Area was designated as a Particularly Sensitive Sea Area (PSSA) at IMO Marine Environment Protection Committee's 53rd session in July 2005. Contemporary hierarchical maritime navigation safety management system from global to local level is considered as a basis for implementation of the System Theoretic Accident Model and Processes (STAMP) approach to architecting the maritime navigation safety control system. This paper introduces the STAMP-Mar research concept and application positions under development aimed at dynamic safety management of eco-socio-technical maritime navigation system that will network existing systems, systems already under development, and systems to be developed to meet the system safety requirements and to enable high levels of joint connectivity, situational awareness and understanding. Issue is exemplified by outlining the systems theoretic STAMP-Mar framework applied to safety management of maritime navigation in the Gulf of Finland (Baltic Sea).","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115701789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Benefits of GNSS IF data recording GNSS中频数据记录的好处
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530544
G. Lachapelle, A. Broumandan
{"title":"Benefits of GNSS IF data recording","authors":"G. Lachapelle, A. Broumandan","doi":"10.1109/EURONAV.2016.7530544","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530544","url":null,"abstract":"The advantages of recording IF (intermediate frequency) data when observing GNSS signals are discussed. This fundamental data can be reprocessed indefinitely with any acquisition and tracking loop algorithm to assist in the design and use of enhanced loops for the applications needed. If a sufficient number of bits and signal bandwidth are recorded, no fundamental information is lost and the data can be used in postmission for advanced earth observations and GNSS infrastructure protection used methods yet to be discovered. The data storage requirement is described and two examples are employed to demonstrate its use.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123830331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
The SaPPART COST Action: Towards positioning integrity for road transport SaPPART成本行动:朝着道路运输的完整性定位
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530570
P. Gilliéron, L. Ruotsalainen, F. Peyret, S. Feng, J. Engdahl
{"title":"The SaPPART COST Action: Towards positioning integrity for road transport","authors":"P. Gilliéron, L. Ruotsalainen, F. Peyret, S. Feng, J. Engdahl","doi":"10.1109/EURONAV.2016.7530570","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530570","url":null,"abstract":"Global Navigation Satellite Systems (GNSS) is becoming one of the main components supporting Intelligent Transport Systems (ITS) and value-added services in road transport and personal mobility. The use of GNSS is expected to grow significantly due to improvements in positioning performance, with positive impacts such as: finding the optimal route; improving traffic and travel efficiency as well as safety and security; reducing congestion and optimizing fuel consumption. The deployment of mission critical applications needs high reliability in the positioning information. However, the positioning reliability is not easy to achieve because of the heterogeneous quality of the GNSS signal, which is highly influenced by the road environment and the operational scenario of the application. It is important to understand the requirements and performance GNSS can achieve for various road transport applications. This paper is presenting the SaPPART COST Action on the Satellite Positioning Performance Assessment for Road Transport. It introduces the goal and the framework of the Action with the research programme and some related activities dedicated to dissemination and supporting standardisation working groups.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130254118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Ionospheric spatial and temporal gradients for disturbance characterization 电离层扰动表征的时空梯度
2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI: 10.1109/EURONAV.2016.7530564
J. Vuković, T. Kos
{"title":"Ionospheric spatial and temporal gradients for disturbance characterization","authors":"J. Vuković, T. Kos","doi":"10.1109/EURONAV.2016.7530564","DOIUrl":"https://doi.org/10.1109/EURONAV.2016.7530564","url":null,"abstract":"Global navigation satellite systems' performance is affected by the ionospheric signal delay. Ionospheric models are continuously enhanced to better describe ionospheric dynamics and reduce positioning errors. Changes in the geomagnetic field, influenced by the interplanetary magnetic field, reflect to the amount and distribution of the ionospheric ionization, quantified with the Total Electron Content (TEC). This paper characterizes the ionosphere over Europe during a geomagnetic storm. Combined information of temporal TEC change and spatial TEC gradients provides better overview of the ionospheric structures and enables clear insight in their dynamics and evolution.","PeriodicalId":300111,"journal":{"name":"2016 European Navigation Conference (ENC)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134246255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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