{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:27:29Z","timestamp":1760243249159,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2014,12,8]],"date-time":"2014-12-08T00:00:00Z","timestamp":1417996800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004329","name":"Slovenian Research Agency","doi-asserted-by":"publisher","award":["L5-4142"],"award-info":[{"award-number":["L5-4142"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Foundation for Financing Sport Organizations in Slovenia","award":["RR-13-145"],"award-info":[{"award-number":["RR-13-145"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Global Navigation Satellite Systems (GNSS) are, in addition to being most widely used vehicle navigation method, becoming popular in sport-related tests. There is a lack of knowledge regarding tracking speed using GNSS, therefore the aims of this study were to examine under dynamic conditions: (1) how accurate technologically different GNSS measure speed and (2) how large is latency in speed measurements in real time applications. Five GNSSs were tested. They were fixed to a car\u2019s roof-rack: a smart phone, a wrist watch, a handheld device, a professional system for testing vehicles and a high-end Real Time Kinematics (RTK) GNSS. The speed data were recorded and analyzed during rapid acceleration and deceleration as well as at steady speed. The study produced four main findings. Higher frequency and high quality GNSS receivers track speed at least at comparable accuracy to a vehicle speedometer. All GNSS systems measured maximum speed and movement at a constant speed well. Acceleration and deceleration have different level of error at different speeds. Low cost GNSS receivers operating at 1 Hz sampling rate had high latency (up to 2.16 s) and are not appropriate for tracking speed in real time, especially during dynamic movements.<\/jats:p>","DOI":"10.3390\/s141223490","type":"journal-article","created":{"date-parts":[[2014,12,8]],"date-time":"2014-12-08T11:15:56Z","timestamp":1418037356000},"page":"23490-23508","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Comparison of Global Navigation Satellite System Devices on Speed Tracking in Road (Tran)SPORT Applications"],"prefix":"10.3390","volume":"14","author":[{"given":"Matej","family":"Supej","sequence":"first","affiliation":[{"name":"Department of Biomechanics, Faculty of Sport, University of Ljubljana, Ljubljana 1000, Slovenia"},{"name":"Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Koper 6000, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivan","family":"\u010cuk","sequence":"additional","affiliation":[{"name":"Department of Biomechanics, Faculty of Sport, University of Ljubljana, Ljubljana 1000, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,12,8]]},"reference":[{"key":"ref_1","unstructured":"Takac, F., and Walford, J. (2006, January 26\u201329). Leica System 1200\u2014High Performance GNSS Technology for RTK Applications. Fort Worth, TX."},{"key":"ref_2","unstructured":"Dvorkin, V., and Karutin, S. (2006, January 22). GLONASS: Current Status and Perspectives. Hannover, Germany."},{"key":"ref_3","unstructured":"Takac, F., Hilker, C., Kotthoff, H., and Richter, B. (2005, January 8\u201310). Combining Measurements From Multiple Global Navigation Satellite Systems for RTK Applications. Hong Kong, China."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1023\/A:1013999415003","article-title":"The Evolution of Global Positioning System (GPS) Technology","volume":"11","author":"Kumar","year":"2002","journal-title":"J. Sci. Educ. Technol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1080\/02701367.2012.10599831","article-title":"Evaluation of thetrackstick super GPS tracker for use in walking research","volume":"83","author":"McMinn","year":"2012","journal-title":"Res. Quart. Exerc. Sport"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1249\/mss.0b013e3181590bc2","article-title":"Assessment of speed and position during human locomotion using nondifferential GPS","volume":"40","author":"Townshend","year":"2008","journal-title":"Med. Sci. Sports Exerc."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1016\/j.jsams.2008.10.010","article-title":"Applying GPS to enhance understanding of transport-related physical activity","volume":"12","author":"Duncan","year":"2009","journal-title":"J. Sci. Med. Sport"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1080\/02640410802422181","article-title":"The validity of a non-differential global positioning system for assessing player movement patterns in field hockey","volume":"27","author":"MacLeod","year":"2009","journal-title":"J. Sports Sci."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.jsams.2008.09.015","article-title":"Validity and reliability of GPS devices for measuring movement demands of team sports","volume":"13","author":"Coutts","year":"2010","journal-title":"J. Sci. Med. Sport"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"759","DOI":"10.1080\/02640411003716934","article-title":"3D measurements of alpine skiing with an inertial sensor motion capture suit and GNSS RTK system","volume":"28","author":"Supej","year":"2010","journal-title":"J. Sports Sci."},{"key":"ref_11","unstructured":"Giorgi, G., Teunissen, P.J.G., and Verhagen, S. (2010, January 25\u201327). Reducing the Time-To-Fix for Stand-Alone Single-Frequency GNSS Attitude Determination. San Diego, CA, USA."},{"key":"ref_12","unstructured":"Brown, N., Keenan, R., Richter, B., and Troyer, L. (2005, January 13\u201316). Advances in ambiguity resolution for RTK applications using the new RTCM V3.0 Master-Auxiliary messages. Long Beach, CA, USA."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1891","DOI":"10.1016\/j.jbiomech.2004.02.031","article-title":"Accuracy of non-differential GPS for the determination of speed over ground","volume":"37","author":"Witte","year":"2004","journal-title":"J. Biomech."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1717","DOI":"10.1016\/j.jbiomech.2004.07.028","article-title":"Accuracy of WAAS-enabled GPS for the determination of position and speed over ground","volume":"38","author":"Witte","year":"2005","journal-title":"J. Biomech."},{"key":"ref_15","unstructured":"Ando, H. (1991). GPS Satellite Signal Tracking Method for GPS Receivers. (Patent US5155491)."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1097\/00005768-200003000-00014","article-title":"Assessment of speed of human locomotion using a differential satellite global positioning system","volume":"32","author":"Schutz","year":"2000","journal-title":"Med. Sci. Sports Exerc."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1016\/j.humov.2005.03.002","article-title":"GPS analysis of human locomotion: Further evidence for long-range correlations in stride-to-stride fluctuations of gait parameters","volume":"24","author":"Terrier","year":"2005","journal-title":"Hum. Mov. Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1186\/1479-5868-6-73","article-title":"Global positioning system: A new opportunity in physical activity measurement","volume":"6","author":"Maddison","year":"2009","journal-title":"Int. J. Behav. Nutr. Phys. Act."},{"key":"ref_19","unstructured":"Hawkins, I. Torque Pro application. Available online: http:\/\/torque-bhp.com\/."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/S0140-6736(86)90837-8","article-title":"Statistical methods for assessing agreement between two methods of clinical measurement","volume":"1","author":"Bland","year":"1986","journal-title":"Lancet"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1085","DOI":"10.1016\/S0140-6736(95)91748-9","article-title":"Comparing methods of measurement: Why plotting difference against standard method is misleading","volume":"346","author":"Bland","year":"1995","journal-title":"Lancet"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1080\/02701367.2011.10599772","article-title":"A new time measurement method using a high-end global navigation satellite system to analyze alpine skiing","volume":"82","author":"Supej","year":"2011","journal-title":"Res. Quart. Exerc. Sport"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"53","DOI":"10.52165\/sgj.6.2.53-61","article-title":"Differences in the key kinematic parameters of difficult handspring and Tsukahara vaults performed by elite male gymnasts","volume":"6","author":"Farana","year":"2014","journal-title":"Sci. Gymnast. J."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"31","DOI":"10.52165\/sgj.5.3.31-46","article-title":"Kinematic and kinetic tumbling take-off comparisons of a spring-floor and an air floorTM: A pilot study","volume":"5","author":"Sands","year":"2013","journal-title":"Sci. Gymnast. J."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"73","DOI":"10.2478\/v10078-010-0051-0","article-title":"Biomechanical, neuro-muscular and methodical aspects of running speed development","volume":"26","year":"2010","journal-title":"J. Hum. Kinet."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"516","DOI":"10.1123\/jab.26.4.516","article-title":"Application of a full body inertial measurement system in alpine skiing: A comparison with an optical video based system","volume":"26","author":"Kruger","year":"2010","journal-title":"J. Appl. Biomech."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/12\/23490\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:10:36Z","timestamp":1760217036000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/12\/23490"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,12,8]]},"references-count":26,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2014,12]]}},"alternative-id":["s141223490"],"URL":"https:\/\/doi.org\/10.3390\/s141223490","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2014,12,8]]}}}