NASA NTRS · 19800041748
Narrowband system activities in the NASA communications program
Abstract
The objective of NASA's narrowband system activities is to identify, develop, and test the technology needed for future commercial satellite-aided mobile communications systems. Desired characteristics include low service cost, efficient spectrum utilization, and compatibility with terrestrial systems. Ongoing effort includes system concept definition and market analysis. A typical system would need a large spaceborne antenna with 50 to 100 beams, each 0.5 to 0.7 degree wide, onboard switching and processing, linear solid-state amplifiers, and low-cost user terminals. The paper describes current studies and discusses future NASA plans in this field.
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Durrani, S. H.. 1979-01-01. Narrowband system activities in the NASA communications program. https://ntrs.nasa.gov/citations/19800041748
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