Les systèmes globaux de navigation par satellite (GNSS) n'avaient à l'origine pas vocation à répondre aux besoins de positionnement pour des applications scientifiques précises. Mais un usage détourné des signaux a permis d'accéder à des mesures de distance satellite–récepteur d'une précision millimétrique. Si la technique différentielle s'est imposée comme une méthode incontournable, le mode PPP est aujourd'hui une alternative de plus en plus populaire. Mais, quelle que soit l'approche, les GNSS ont révolutionné la réalisation des repères d'espace et de temps ainsi que les nombreux usages nécessitant en temps différé ou en temps réel un positionnement précis.
Global Navigation Satellite Systems (GNSS) were not initially designed to be used for precise scientific applications. However, a smart signal processing can provide a satellite–receiver range measurement with millimeter accuracy. If the differential technique has become an essential method, the PPP mode is today an increasingly popular alternative. But, whatever the approach, GNSS have revolutionized the realization of space and time frames and the many applications requiring post-processed or real-time precise positioning.
Mot clés : GNSS, IGS, SSR, OSR
Félix Perosanz 1
@article{CRPHYS_2019__20_3_171_0, author = {F\'elix Perosanz}, title = {GNSS: {A} revolution for precise geopositioning}, journal = {Comptes Rendus. Physique}, pages = {171--175}, publisher = {Elsevier}, volume = {20}, number = {3}, year = {2019}, doi = {10.1016/j.crhy.2019.05.018}, language = {en}, }
Félix Perosanz. GNSS: A revolution for precise geopositioning. Comptes Rendus. Physique, Volume 20 (2019) no. 3, pp. 171-175. doi : 10.1016/j.crhy.2019.05.018. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2019.05.018/
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