{"id":207886,"date":"2018-01-04T16:10:03","date_gmt":"2018-01-04T13:10:03","guid":{"rendered":"https:\/\/kinsta.unitedwithisrael.org\/?p=207886\/"},"modified":"2018-01-05T15:49:35","modified_gmt":"2018-01-05T12:49:35","slug":"revolutionnaire-les-nano-satellites-nouvelle-innovation-made-in-israel-dans-le-domaine-spatial","status":"publish","type":"post","link":"https:\/\/kinsta.unitedwithisrael.org\/fr\/revolutionnaire-les-nano-satellites-nouvelle-innovation-made-in-israel-dans-le-domaine-spatial\/","title":{"rendered":"R\u00e9volutionnaire: les nano satellites, nouvelle innovation \u00ab\u00a0made in Israel\u00a0\u00bb dans le domaine spatial"},"content":{"rendered":"

En 2018, Isra\u00ebl lancera trois nano satellites dans l’espace, de quoi red\u00e9finir en profondeur le domaine de la technologie.\u00a0 \u00a0<\/span><\/span><\/strong><\/em><\/p>\n

Par l’\u00e9quipe d’Unis avec Isra\u00ebl<\/span><\/span><\/em><\/p>\n

De mani\u00e8re conjointe, l’universit\u00e9 isra\u00e9lienne du Technion et l’ <\/span><\/span>Agence spatiale isra\u00e9lienne ont<\/span><\/span><\/a>\u00a0fait une annonce majeure pour le secteur spatial mercredi: fin 2018,\u00a0 trois nano satellites seront pour la premi\u00e8re fois lanc\u00e9s dans l’espace et voleront en formation contr\u00f4l\u00e9e.<\/span><\/span><\/p>\n

La formation satellitaire sera lanc\u00e9e par la soci\u00e9t\u00e9 n\u00e9erlandaise Innovative Solutions In Space, sp\u00e9cialis\u00e9e dans le lancement de nanosatellites sur le PSLV indien (Polar Satellite Launch Vehicle).<\/span><\/span><\/p>\n

Le projet Adelis-SAMSON a \u00e9t\u00e9 d\u00e9velopp\u00e9 ces derni\u00e8res ann\u00e9es par une \u00e9quipe de chercheurs dirig\u00e9e par le professeur Pini Gurfil, directeur de l’Asher Space Research Institute et membre de la facult\u00e9 d’ing\u00e9nierie a\u00e9rospatiale Technion, et avec le soutien de la Fondation Adelis et de l’Agence spatiale isra\u00e9lienne.<\/span><\/span><\/p>\n

L’objectif du projet est de prouver qu’un groupe de satellites peut voler en formation contr\u00f4l\u00e9e pendant un an en orbite \u00e0 une altitude d’environ 600 kilom\u00e8tres.<\/span><\/span><\/p>\n

Une Technologie isra\u00e9lienne r\u00e9volutionnaire<\/span><\/span><\/h2>\n

\u00a0\u00bb <\/span><\/span>La technologie isra\u00e9lienne<\/span><\/span><\/a>\u00a0d\u00e9montre une fois de plus son caract\u00e8re innovant\u00a0\u00bb, a d\u00e9clar\u00e9 le ministre des Sciences et de la Technologie, Ofir Akunis. <\/span>\u00ab\u00a0Nous sommes fiers de faire partie de ce projet phare, qui repr\u00e9sente une contribution significative \u00e0 l’avancement de l’a\u00e9rospatiale isra\u00e9lienne et \u00e0 la formation des \u00e9tudiants dans ce domaine<\/em>.\u00a0\u00bb<\/span><\/span><\/p>\n

Les satellites seront utilis\u00e9s pour recevoir les signaux de la Terre et calculer l’emplacement de la source de transmission pour les op\u00e9rations de recherche et de sauvetage, la t\u00e9l\u00e9d\u00e9tection et la surveillance de l’environnement. <\/span>La taille de chacun des satellites est de 10 sur 20 par 30 cm, environ la taille d’une bo\u00eete \u00e0 chaussures, et ils p\u00e8sent un total d’environ 8 kg. <\/span>Les satellites seront \u00e9quip\u00e9s de dispositifs de mesure, d’antennes, de syst\u00e8mes informatiques, de syst\u00e8mes de contr\u00f4le et de dispositifs de navigation.<\/span><\/span><\/p>\n

Le logiciel de vol et les algorithmes ont \u00e9t\u00e9 d\u00e9velopp\u00e9s dans le laboratoire des syst\u00e8mes spatiaux distribu\u00e9s de Technion.<\/span><\/span><\/p>\n

Les prochains objectifs d’Isra\u00ebl dans l’espace<\/span><\/span><\/h2>\n

\u00ab\u00a0La miniaturisation des satellites et la technologie isra\u00e9lienne avanc\u00e9e nous permettront de faire d’Isra\u00ebl un acteur important dans le domaine des nano satellites<\/em>\u00ab\u00a0, a expliqu\u00e9 le professeur Gurfil. <\/span>\u00ab\u00a0Le degr\u00e9 d’innovation ici peut \u00eatre compar\u00e9 au passage d’un PC \u00e0 un ordinateur portable, puis \u00e0 un t\u00e9l\u00e9phone mobile, qui offre beaucoup plus de capacit\u00e9s que ses pr\u00e9d\u00e9cesseurs.<\/em>\u00ab\u00a0<\/span><\/span><\/p>\n

\u00ab\u00a0Le domaine des nano satellites s’est consid\u00e9rablement d\u00e9velopp\u00e9 ces derni\u00e8res ann\u00e9es et le nombre de lancements double chaque ann\u00e9e<\/em>\u00ab\u00a0, a d\u00e9clar\u00e9 Avi Blasberger, directeur g\u00e9n\u00e9ral de l’Agence spatiale isra\u00e9lienne. <\/span>\u00ab\u00a0Les co\u00fbts de d\u00e9veloppement et de lancement de tels satellites sont nettement inf\u00e9rieurs \u00e0 ceux des satellites conventionnels. <\/em><\/span>Dans un proche avenir, nous pouvons nous attendre \u00e0 observer des r\u00e9seaux de milliers de nano satellites qui voler au-dessus de la Terre, et qui permettront une communication Internet \u00e0 haut d\u00e9bit \u00e0 un co\u00fbt nettement inf\u00e9rieur \u00e0 celui d’aujourd’hui.<\/em> \u00ab\u00a0<\/span><\/span><\/p>\n

Une technologie \u00ab\u00a0Made in Israel\u00a0\u00bb<\/span><\/span><\/h2>\n

La technologie unique du satellite est enti\u00e8rement \u00abbleu et blanc\u00bb, fabriqu\u00e9e en Isra\u00ebl: le syst\u00e8me de propulsion \u00e0 base de gaz krypton Rafael sera le premier syst\u00e8me au monde \u00e0 alimenter un minuscule satellite. <\/span>Le r\u00e9cepteur num\u00e9rique a \u00e9t\u00e9 d\u00e9velopp\u00e9 par Elta et le syst\u00e8me de contr\u00f4le de guidage a \u00e9t\u00e9 d\u00e9velopp\u00e9 \u00e0 l’usine MABAT d’Israel Aerospace Industries en coop\u00e9ration avec des chercheurs du Technion.<\/span><\/span><\/p>\n

En plus du syst\u00e8me de propulsion, les satellites accumuleront de l’\u00e9nergie gr\u00e2ce \u00e0 des panneaux solaires qui s’\u00e9tendront depuis les c\u00f4t\u00e9s de chaque satellite et serviront d’ailes qui contr\u00f4leront la formation de vol sans utiliser de carburant, gr\u00e2ce \u00e0 la r\u00e9sistance de l’air dans l’atmosph\u00e8re.<\/span><\/span><\/p>\n

Chacun des nano satellites sera \u00e9quip\u00e9e d’un r\u00e9cepteur de signal num\u00e9rique, l’un des r\u00e9cepteurs les plus complexes jamais con\u00e7us pour un nano satellite. <\/span>Le syst\u00e8me de traitement de l’information par satellite et les algorithmes qui contr\u00f4lent la formation seront les premiers du genre dans le monde et soutiendront le fonctionnement autonome de plusieurs satellites.<\/span><\/span><\/p>\n

Le syst\u00e8me de communications et de navigation comprendra deux r\u00e9cepteurs GPS destin\u00e9 \u00e0 la navigation autonome et un syst\u00e8me de communication utilis\u00e9 par les trois nano satellites pour communiquer entre eux et avec la station au sol – un d\u00e9fi important qui a \u00e9t\u00e9 r\u00e9solu dans le courant projet. <\/span>Une fr\u00e9quence d\u00e9di\u00e9e sera utilis\u00e9e pour l’envoi de donn\u00e9es vers la Terre via le haut d\u00e9bit.<\/span><\/span><\/p>\n

\u00ab\u00a0Si nous parvenons \u00e0 prouver dans l’espace que le pilotage est possible<\/em>\u00ab\u00a0, a d\u00e9clar\u00e9 le professeur Gurfil, \u00ab\u00a0ce sera un coup de fouet pour le d\u00e9veloppement de petits satellites et de technologies li\u00e9es \u00e0 la miniaturisation des composants \u00e9lectroniques, pour un traitement spatial efficace et des syst\u00e8mes de propulsion spatiale. <\/em><\/span>Les technologies d\u00e9velopp\u00e9es dans les nano satellites contribueront \u00e0 une vari\u00e9t\u00e9 d’applications civiles et feront la promotion de l’industrie a\u00e9rospatiale isra\u00e9lienne.<\/em> \u00ab\u00a0<\/span><\/span><\/p>\n

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En 2018, Isra\u00ebl lancera trois nano satellites dans l’espace, de quoi red\u00e9finir en profondeur le domaine de la technologie.\u00a0 \u00a0 Par l’\u00e9quipe d’Unis avec Isra\u00ebl De mani\u00e8re conjointe, l’universit\u00e9 isra\u00e9lienne du Technion et l’ Agence spatiale isra\u00e9lienne ont\u00a0fait une annonce majeure pour le secteur spatial mercredi: fin 2018,\u00a0 trois nano satellites seront pour la premi\u00e8re… Read more 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