Subcarrier Phase Recovery Performance in Bent-Pipe Mode of Shuttle Data Transmission

• Main Authors: McKenzie, Teresa M., Braun, W. R.
• Other Authors: LinCom Corporation
• Language: en_US
• Published: International Foundation for Telemetering 1978
• Online Access: http://hdl.handle.net/10150/609939; http://arizona.openrepository.com/arizona/handle/10150/609939

International Telemetering Conference Proceedings / November 14-16, 1978 / Hyatt House Hotel, Los Angeles, California === The subcarrier phase recovery is analyzed for the bent-pipe mode of Space Shuttle detached-payload data transmission on the Tracking and Data Relay Satellite System (TDRSS) Ku-band return link. The high-power component of the subcarrier modulation is unrestored payload data, either at baseband or modulating another subcarrier. At the receiver a Costas loop recovers the subcarrier phase. To analyze its performance in the baseband case, we obtain the loop S-curve, the power spectral density of the equivalent noise process, and the loop phase error variance.