20.500.12556/RUL-86440 Komunikacija z vesoljskimi plovili na neeliptični tirnici Communication with the spacecraft in non-elliptical orbit V zadnjem času je ponovno aktualna tema uspeha človeštva pri uporabi vesoljskih plovil, ki nam pomagajo pri odkrivanju lastnosti nebesnih teles in osončja. Dogajanja v vesolju ni mogoče opazovati brez prisotnosti ustreznih naprav na samem kraju dogajanja naravnih pojavov, saj tam človeška prisotnost ni možna, vesoljsko plovilo pa lahko predstavlja oči in ušesa raziskovalcev. Ker pa človek s takim plovilom ne more komunicirati brez povezave, potrebujemo komunikacijski sistem, s katerim povežemo raziskovalce in napravo oziroma plovilo. Ta povezava je lahko npr. v obliki radijskih signalov in ravno s to temo se ukvarja pričujoče besedilo. Diplomsko delo opisuje zgradbo telekomunikacijskega sistema za komuniciranje z vesoljskim plovilom. Opisani so principi potovanja plovila po poleliptični tirnici, ki se kasneje lahko spremeni v krivuljo. Podana je osnovna formula za izračun odklona od prvotno začrtane smeri pri preletu planeta z vesoljskim plovilom, kateri sledijo opisi gravitacijske frače, resonančne tirnice in uporabe manevrov na prenosni poti plovila v medplanetarnem prostoru, tem pa še opis telekomunikacijskega sistema in opreme na plovilu in na Zemlji. V nadaljevanju spoznamo delovanje turbo kode in njenih sestavnih delov, predstavljena sta splošno sprejeta kodirnik in dekodrinik za komunikacijo z vesoljskim plovilom. Ob koncu diplomske naloge je podan izračun največje možne količine prenosa podatkov pri uporabi kanalnega kodiranja (turbo kode) za povezavo navzgor in povezavo navzdol, temu pa sledi še primerjava največje možne količine prenosa podatkov med obema omenjenima povezavama. At the current time re-emerged actuality of use of spacecraft vehicles for discovering celestial bodies and solar system. Researches in the universe can not be observed without presence of devices on the spot of the events of natural phenomena. As on the spot human can not be present, spacecraft become ears and eyes of curious researchers. Human can not telepatically communicate with devices in universe, so we need communication system which becomes main link of human with spacecraft. This link is carried out with radio signals. This is the main reason for emergence of present thesis. The thesis describes the structure of telecommunication system for communication with spacecraft. A description is given for principles of spacecraft jurney on half eliptic trayectory, which can be later extended into a curved trayectory. It is given the basic formula for calculation of deviation from the originally planned spacecraft trajectory course which is the result of flyby , then follows a description of gravitational slingshot, resonance orbit and use of deep space maneuvers in interplanetary space. We can not continue without description of telecommunication system and equipment on board and on Earth based satellite station. Later we realize the operation of the turbo code and her components. Generally accepted encoder and decoder for enabling spacecraft communication are also described. This thesis is concluded with a calculation of the maximum possible amount of data rate using channel coding, which is in our case Turbo code , for uplink and downlink. Comparison of maximum possible amount of data rate between uplink and downlink is also given. satelitske komunikacije radijske komunikacije turbo koda tirnice globoko vesolje Satellite communications radio communications Turbo code trajectory deep space true false false Slovenski jezik Angleški jezik Diplomsko delo 2016-10-14 07:17:40 2016-10-14 07:17:47 2022-08-09 10:45:31 0000-00-00 00:00:00 2016 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 34483 Aljaz_Bozidar_-_Komunikacija_z_vesoljskimi_plovili_na_neelipticni_tirnici.pdf Aljaz_Bozidar_-_Komunikacija_z_vesoljskimi_plovili_na_neelipticni_tirnici.pdf 1 66C134261B6FD4EB4BD6B421F2784AB0 4f00ad3ee588085a83fb2e389455eb016dc4857616e523b53227652caedb02f8 0e0f2edf-a1b1-11eb-a523-00155dcfd717 20.500.12556/rul/53659e25-f73f-4e73-a6ef-febc99004566 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=89642 Fakulteta za elektrotehniko 0 0 0