{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:14:24Z","timestamp":1760235264888,"version":"build-2065373602"},"reference-count":43,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2021,8,4]],"date-time":"2021-08-04T00:00:00Z","timestamp":1628035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["P2-0227","P2-0394"],"award-info":[{"award-number":["P2-0227","P2-0394"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Robust autonomous driving, as long as it relies on satellite-based positioning, requires carrier-phase-based algorithms, among other types of data sources, to obtain precise and true positions, which is also primarily true for the use of GNSS geodetic receivers, but also increasingly true for mass-market devices. The experiment was conducted under line-of-sight conditions on a straight road during a period of no traffic. The receivers were positioned on the roof of a car travelling at low speed in the presence of a static jammer, while kinematic relative positioning was performed with the static reference base receiver. Interference mitigation techniques in the GNSS receivers used, which were unknown to the authors, were compared using (a) the observed carrier-to-noise power spectral density ratio as an indication of the receivers\u2019 ability to improve signal quality, and (b) the post-processed position solutions based on RINEX-formatted data. The observed carrier-to-noise density generally exerts the expected dependencies and leaves space for comparisons of applied processing abilities in the receivers, while conclusions on the output data results comparison are limited due to the non-synchronized clocks of the receivers. According to our current and previous results, none of the GNSS receivers used in the experiments employs an effective type of complete mitigation technique adapted to the chirp jammer.<\/jats:p>","DOI":"10.3390\/s21165257","type":"journal-article","created":{"date-parts":[[2021,8,4]],"date-time":"2021-08-04T08:47:52Z","timestamp":1628066872000},"page":"5257","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Robustness against Chirp Signal Interference of On-Board Vehicle Geodetic and Low-Cost GNSS Receivers"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2580-7786","authenticated-orcid":false,"given":"Franc","family":"Dimc","sequence":"first","affiliation":[{"name":"Faculty of Maritime Studies and Transport, University of Ljubljana, Pot Pomor\u0161\u010dakov 4, SI-6320 Portoro\u017e, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0914-9595","authenticated-orcid":false,"given":"Polona","family":"Pavlov\u010di\u010d-Pre\u0161eren","sequence":"additional","affiliation":[{"name":"Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova Cesta 2, SI-1000 Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1235-8555","authenticated-orcid":false,"given":"Matej","family":"Ba\u017eec","sequence":"additional","affiliation":[{"name":"Faculty of Maritime Studies and Transport, University of Ljubljana, Pot Pomor\u0161\u010dakov 4, SI-6320 Portoro\u017e, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1002\/navi.391","article-title":"GNSS interference mitigation: A measurement and position domain assessment","volume":"68","author":"Borio","year":"2021","journal-title":"Navigation"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1109\/MSP.2017.2710235","article-title":"Time-Frequency Analysis for GNSSs: From interference mitigation to system monitoring","volume":"34","author":"Amin","year":"2017","journal-title":"IEEE Signal Process. Mag."},{"key":"ref_3","unstructured":"Kuusniemi, H., Airos, E., Bhuiyan, M.Z.H., and Kr\u00f6ger, T. (2012, January 25\u201327). Effects of GNSS Jammers on Consumer Grade Satellite Navigation Receivers. Proceedings of the European Navigation Conference, Gdansk, Poland."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1017\/S0373463316000473","article-title":"GNSS Jamming Resilience for Close to Shore Navigation in the Northern Sea","volume":"70","author":"Glomsvoll","year":"2017","journal-title":"J. Navig."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2762","DOI":"10.1109\/TITS.2017.2766768","article-title":"GNSS Position Integrity in Urban Environments: A Review of Literature","volume":"19","author":"Zhu","year":"2018","journal-title":"IEEE Trans. Intell. Transp. Syst."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Elghamrawy, H., Karaim, M., Tamazin, M., and Noureldin, A. (2020). Experimental Evaluation of the Impact of Different Types of Jamming Signals on Commercial GNSS Receivers. Appl. Sci., 10.","DOI":"10.3390\/app10124240"},{"key":"ref_7","unstructured":"Uhrich, P., Abgrall, M., Riedel, F., Chupin, B., Achkar, J., and Rovera, G.D. (2019). A Poweful Signal nearby L1 Frequency Band Jamming GNSS Stations in Observatoire de Paris. ITU J. ICT Discov., 2, Available online: https:\/\/www.itu.int\/dms_pub\/itu-s\/opb\/journal\/S-JOURNAL-ICTF.VOL2-2019-1-P01-PDF-E.pdf."},{"key":"ref_8","first-page":"03004","article-title":"A Design of Anti-jamming Method Based on Spectrum Sensing and GNSS Software Defined Radio","volume":"Volume 94","author":"Wijaya","year":"2018","journal-title":"Proceedings of the International Symposium on Global Navigation Satellite System 2018 (ISGNSS 2018)"},{"key":"ref_9","unstructured":"Dovis, F. (2015). Classification of Interferring Sources and Analysis of the Effects on GNSS Receivers. GNSS Interference Threats and Countermeasures, Artech House."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1007\/s10291-012-0301-9","article-title":"DME\/TACAN interference mitigation for GNSS: Algorithms and flight test results","volume":"17","author":"Gao","year":"2006","journal-title":"GPS Solut."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1327","DOI":"10.1109\/JPROC.2016.2525938","article-title":"Protecting GNSS receivers from jamming and interference","volume":"104","author":"Gao","year":"2016","journal-title":"Proc. IEEE"},{"key":"ref_12","unstructured":"Borio, D., Camoriano, L., and Mulassano, P. (2006, January 26\u201329). Analysis of the one-pole notch filter for interference mitigation: Wiener solution and loss estimations. Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, USA."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1109\/TAES.2012.6129633","article-title":"CW Interference Effects on Tracking Performance of GNSS Receivers","volume":"48","author":"Jang","year":"2012","journal-title":"IEEE Trans. Aerosp. Electron. Syst."},{"key":"ref_14","unstructured":"Giordanengo, G. (2009). Impact of Notch Filtering on Tracking Loops for GNSS Applications. [Ph.D. Thesis, Politecnico di Torino]. Available online: https:\/\/schulich.ucalgary.ca\/labs\/position-location-and-navigation\/files\/position-location-and-navigation\/giordanengo2009_phd.pdf."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Raasakka, J., and Orejas, M. (2014, January 5\u20138). Analysis of notch filtering methods for narrowband interference mitigation. Proceedings of the IEEE\/ION Position, Location and Navigation Symposium (PLANS), Monterey, CA, USA. Available online: https:\/\/doi.org\/10.1109\/PLANS.2014.6851503.","DOI":"10.1109\/PLANS.2014.6851503"},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Di Grazia, D., Cardineau, D., and Pisoni, F. (, January September). A NAVIC enabled hardware receiver for the Indian mass market. Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019), Miami, FL, USA. Available online: https:\/\/doi.org\/10.33012\/2019.16979.","DOI":"10.33012\/2019.16979"},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Qin, W., Dovis, F., Troglia Gamba, M., and Falletti, E. (2019, January 28\u201331). A comparison of optimized mitigation techniques for swept-frequency jammers. Proceedings of the International Technical Meeting of The Institute of Navigation, Reston, VA, USA.","DOI":"10.33012\/2019.16691"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Wendel, J., Schubert, F.M., R\u00fcgamer, A., and Taschke, S. (2016, January 12\u201316). Limits of narrowband interference mitigation using adaptive notch filters. Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016), Portland, OR, USA.","DOI":"10.33012\/2016.14799"},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Vagle, N., Broumandan, A., and Lachapelle, G. (2016). Analysis of multi-antenna GNSS receiver performance under jamming attacks. Sensors, 16.","DOI":"10.3390\/s16111937"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Borio, D. (2014, January 24\u201326). A multi-state notch filter for GNSS jamming mitigation. Proceedings of the International Conference on Localization and GNSS 2014 (ICL-GNSS 2014), Helsinki, Finland.","DOI":"10.1109\/ICL-GNSS.2014.6934175"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1002\/navi.380","article-title":"Kalman filtering with noncoherent integrations for Galileo E6-B tracking","volume":"67","author":"Susi","year":"2020","journal-title":"Navig. J. Inst. Navig."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Cort\u00e9s, I., van der Merwe, J.R., Nurmi, J., R\u00fcgamer, A., and Felber, W. (2021). Evaluation of Adaptive Loop-Bandwidth Tracking Techniques in GNSS Receivers. Sensors, 21.","DOI":"10.3390\/s21020502"},{"key":"ref_23","unstructured":"STRIKE3 (2021, April 12). Standardisation of GNSS Threat Reporting and Receiver Testing through International Knowledge Exchange, Experimentation and Exploitation. Available online: https:\/\/www.gsa.europa.eu\/standardisation-gnss-threat-reporting-and-receiver-testing-through-international-knowledge-exchange."},{"key":"ref_24","unstructured":"Pattinson, M., Lee, S., Bhuiyan, Z., Thombre, S., Manikundalam, V., and Hill, S. (2021, April 25). STRIKE3 Consortium: Draft Standards for Receiver Testing against Threats. Available online: http:\/\/aric-aachen.de\/strike3\/downloads\/STRIKE3_D42_Test_Standards_v2.0.pdf."},{"key":"ref_25","unstructured":"Arnold, D. (2021, April 25). GNSS Jamming and How to Mitigate it. Available online: https:\/\/blog.meinbergglobal.com\/2020\/04\/12\/gnss-jamming-and-how-to-mitigate-it\/."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Pavlov\u010di\u010d-Pre\u0161eren, P., Dimc, F., and Ba\u017eec, M. (2021). A Comparative Analysis of the Response of GNSS Receivers under Vertical and Horizontal L1\/E1 Chirp Jamming. Sensors, 21.","DOI":"10.3390\/s21041446"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Ba\u017eec, M., Dimc, F., and Pavlov\u010di\u010d-Pre\u0161eren, P. (2020). Evaluating the Vulnerability of Several Geodetic GNSS Receivers under Chirp Signal L1\/E1 Jamming. Sensors, 20.","DOI":"10.3390\/s20030814"},{"key":"ref_28","unstructured":"Wendel, J., Kurzhals, C., Houdek, M., and Samson, J. (2013, January 16\u201320). An Interference Monitoring System for GNSS Reference Stations. Proceedings of the 26th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2013), Tampa, FL, USA."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1002\/navi.184","article-title":"An Experimental Evaluation of Low-Cost GNSS Jamming Sensors","volume":"64","author":"Dimc","year":"2017","journal-title":"Navigation"},{"key":"ref_30","unstructured":"(2021, April 12). U-blox ZED-F9P. Available online: https:\/\/www.u-blox.com\/sites\/default\/files\/ZED-F9P_DataSheet_%28UBX-17051259%29.pdf."},{"key":"ref_31","unstructured":"Everett, T. (2021, April 12). Building a Simple U-blox F9P Data Logger with a Sparkfun OpenLog Board. Available online: https:\/\/rtklibexplorer.wordpress.com\/2019\/10\/25\/building-a-simple-u-blox-f9p-data-logger-with-a-sparkfun-openlog-board\/."},{"key":"ref_32","first-page":"8","article-title":"Characterization of GNSS Jammers","volume":"IX","author":"Borio","year":"2013","journal-title":"Coordinates"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"639","DOI":"10.1017\/S037346331500082X","article-title":"Asynchronous pseudolite navigation using C\/N0 measurements","volume":"69","author":"Borio","year":"2016","journal-title":"J. Navig."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"359","DOI":"10.1007\/s40328-019-00261-9","article-title":"Review of NavIC signals under class II jamming based on power and auto-correlation function monitoring","volume":"54","author":"Lineswala","year":"2019","journal-title":"Acta Geod. Geophys."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"513","DOI":"10.1017\/S0373463317000911","article-title":"GNSS Threat Monitoring and Reporting: Past, Present, and a Proposed Future","volume":"71","author":"Thombre","year":"2018","journal-title":"J. Navig."},{"key":"ref_36","unstructured":"Everett, T. (2020, December 06). RTKLIB Demo5_b33e. Available online: http:\/\/rtkexplorer.m\/downloads\/rtklib-code\/."},{"key":"ref_37","unstructured":"Takasu, T. (2021, March 20). RTKLIB: An Open Source Program Package for GNSS Positioning. Available online: http:\/\/rtklib.com\/."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Kubo, N., Kobayashi, K., and Furukawa, R. (2020). GNSS multipath detection using continuous time-series C\/N0. Sensors, 20.","DOI":"10.3390\/s20144059"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"6693","DOI":"10.1007\/s10586-018-2524-1","article-title":"The quality analysis of GNSS satellite positioning data","volume":"22","author":"Zuo","year":"2019","journal-title":"Cluster Comput."},{"key":"ref_40","first-page":"20","article-title":"Measuring GNSS Signal Strength","volume":"5","author":"Joseph","year":"2010","journal-title":"Inside GNSS"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1002\/navi.74","article-title":"Jamming detection in GNSS receivers: Performance evaluation of field trials","volume":"62","author":"Axell","year":"2015","journal-title":"Navig. J. Inst. Navig."},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Zhang, J., Cui, X., Xu, H., and Lu, M. (2019). A two-stage interference suppression scheme based on antenna array for GNSS jamming and spoofing. Sensors, 19.","DOI":"10.3390\/s19183870"},{"key":"ref_43","unstructured":"Dimc, F., Pavlov\u010di\u010d-Pre\u0161eren, P., and Ba\u017eec, M. (2021, April 27). Detailed Measurement Results. Available online: https:\/\/gnss.fpp.uni-lj.si\/2021-03-19\/."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/16\/5257\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:40:15Z","timestamp":1760164815000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/16\/5257"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,8,4]]},"references-count":43,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2021,8]]}},"alternative-id":["s21165257"],"URL":"https:\/\/doi.org\/10.3390\/s21165257","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2021,8,4]]}}}