mousus Posted February 28, 2013 · Report post весьма занятная пдфка с описанием системы связи с марсоходом http://descanso.jpl.nasa.gov/DPSummary/Descanso14_MSL_Telecom.pdf Связь идет в X-диапазоне (7-8гГц). Share this post Link to post Share on other sites
p9160ff Posted March 1, 2013 · Report post Кулл...) Share this post Link to post Share on other sites
MaXToP Posted March 1, 2013 · Report post непонял скорость до земли от марсохода, между марсоходом и двумя марсианскими спутниками 100 и 250Мбит а от них ? Share this post Link to post Share on other sites
sol Posted March 1, 2013 · Report post Не мегабит, нет... Share this post Link to post Share on other sites
SSD Posted March 1, 2013 · Report post непонял скорость до земли от марсохода, между марсоходом и двумя марсианскими спутниками 100 и 250Мбит а от них ? Там скорости далеко не мегабитные. 2.2.1 38BX-Band2.2.1.1 57BDownlink (DTE) The SSPA transmits 15 W and receives its RF input signal from the rover SDST. The basic telecom requirement for surface operations on the HGA is to provide a downlink capability of at least at 160 bits per second (bps) to a 34-m station or 800 bps to a 70-m station. 2.2.1.2 58BUplink (DFE) Current DFE planning is to use the HGA for the typical daily uplink of commands, taking approximately 15 minutes for a total volume of 225 kilobits (kb). Typical uplink rates to the HGA will be 1 kbps or 2 kbps. The 15 minutes provides some margin for possible station transmitter delays and for packaging of commands into groups. In safe mode, commands from the Earth will be received via the RLGA. The RLGA has a broad pattern and does not have pointing capability like the HGA. The RLGA does, however, have the capability for uplink (command) communications (15 bits per second at max range). Share this post Link to post Share on other sites
MaXToP Posted March 1, 2013 · Report post так на 113 странице Share this post Link to post Share on other sites
