Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Engineering
A Software Defined Radio Communications System For A Small Spacecraft, Michael Hlas, Jeremy Straub, Ronald Marsh
A Software Defined Radio Communications System For A Small Spacecraft, Michael Hlas, Jeremy Straub, Ronald Marsh
Jeremy Straub
Software defined radios (SDRs) are poised to significantly enhance the future of small spacecraft communications. They allow signal processing to be performed on a computer by software rather than requiring dedicated hardware. The OpenOrbiter SDR (discussed in [1] and refined in [2]) takes data from the flight computer and converts it into an analog signal that is transmitted via the spacecraft antenna. Because the signal processing is done in software, the radio can be easily reconfigured. This process is done in reverse for incoming transmissions, which are received by the SDR and decoded by software. Figures 1 and 2 provide …
Creating A Low-Cost Radio For An Open Cubesat, Michael Wegerson, Jeremy Straub, Ronald Marsh
Creating A Low-Cost Radio For An Open Cubesat, Michael Wegerson, Jeremy Straub, Ronald Marsh
Jeremy Straub
A reliable communication system is key to the success of a CubeSat mission, allowing for data to be trans-mitted to the ground station and commands to be up-loaded to the satellite. To satisfy this need, the OpenOrbiter satellite (a 1-U CubeSat [1], being devel-oped with a target parts budget of under $5,000 [2]) is leveraging previously space-tested [3], low-cost trans-ceiver design which is based on the SI 4463 IC unit. This board design will be included in the publically available Open Framework for Educational Nanosatel-lites (OPEN) allowing others to modify, enhance and/or make use of the design in the future.
Update On The Progress Of The 1-U Open Cubesat Development, Jeremy Straub, Ronald Marsh
Update On The Progress Of The 1-U Open Cubesat Development, Jeremy Straub, Ronald Marsh
Jeremy Straub
The OpenOrbiter program [1] is developing a low-cost framework for the creation of space-craft [2] by researchers and educators world-wide [3]. In line with the objective of enabling future educational use by others, educational assessment [4, 5] has been a key focus. Sever-al areas were assessed: students were asked what types of benefits they sought from their participation [6], assessment of benefit attain-ment is ongoing. Work on the development of a designs (See Figures 2 and 8) that can be used to build a spacecraft with a cost of under $5,000 [7] using primarily COTS parts and testing (see Figure …