کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1715380 1519978 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ka-band high-rate telemetry system upgrade for the NASA deep space network
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Ka-band high-rate telemetry system upgrade for the NASA deep space network
چکیده انگلیسی

The NASA Deep Space Network (DSN) has a new requirement to support high-data-rate Category A (Cat A) missions (within 2 million kilometers of the Earth) with simultaneous S-band uplink, S-band downlink and Ka-band downlink. The S-band links are required for traditional telemetry, tracking & command (TT&C) support to the spacecraft, while the Ka-band link is intended for high-data-rate science returns. The new Ka-band system combines the use of proven DSN cryogenic designs, for low system temperature, and high-data-rate capability using commercial telemetry receivers. The initial Cat A support is required for the James Webb Space Telescope (JWST) in 2014 and possibly other missions. The upgrade has been implemented into 3 different 34-meter Beam Waveguide (BWG) antennas in the DSN, one at each of the complexes in Canberra (Australia), Goldstone (California) and Madrid (Spain). System test data are presented to show that the requirements were met and the DSN is ready for Cat A Ka-band operational support.


► A space tracking antenna with 3 frequency bands is upgraded with a 4th band.
► A good tradeoff is found between low system temperature and strong signal handling capability.
► The system utilizes digital receiver technology to allow for modulation and coding type upgrades in the future.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 70, January–February 2012, Pages 58–68
نویسندگان
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