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Coherent arraying of transmitting antenna signals at a distant spacecraft provides an effective gain proportional to N2, where N is the number of antennas in the array. This technology is currently being developed for NASA's Deep Space Network (DSN) to provide greater range and data throughput for future NASA missions, including manned missions to Mars and exploratory missions to the outer planets,...
Uplink array technology is currently being developed for NASA's deep space network (DSN), to provide greater range and data throughput for future NASA missions, including manned missions to Mars and exploratory missions to the outer planets, the Kuiper belt, and beyond. The DSN uplink arrays employ N microwave antennas transmitting at X-band to produce signals that add coherently at the spacecraft,...
NASA has undertaken a study to recommend and justify coding, modulation, and link protocol (CMLP) designs for the Space Communications and Networking (SCaN) office. This paper reports on the coding part of the CMLP study, which is chartered with identifying the forward error correction (FEC) codes suitable for NASA space exploration and science missions through 2030.
The National Aeronautics and Space Administration (NASA) has recently conducted a comprehensive study to identify the most appropriate and efficient modulation, coding, multiple access and link protocol techniques for future space communication links supporting space exploration and science missions. The study was chartered by NASA's space communication and navigation (SCaN) office and is referred...
Although the technologies for large arrays of distributed reflector antennas with just downlink (receiving) capability have been well defined and proven for deep space applications, a similar architecture, i.e., the arraying of distributed reflector antennas for uplink (transmitting) applications has not been proven, tested, or built yet. In previous papers (Hurd, 2005) the need, feasibility, technology...
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