NASA NTRS · 19810008028
An interferometer-based phase control system
Abstract
A system for focusing and pointing the SPS power beam is discussed. The system is ground based and closed loop. One receiving antenna is required on earth. A conventional uplinked data channel transmits an 8-bit phase error correction back to the SPS for sequential calibration of each power module. Beam pointing resolution is better than 140 meters at the rectenna.
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Ott, J. H., Rice, J. S.. 1981-12-01. An interferometer-based phase control system. https://ntrs.nasa.gov/citations/19810008028
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