Baseband Performance Degradation Due to Interference in the Fixed-Satellite Service

摘要

The report describes a set of receiver transfer characteristic (RTC) algorithms developed at National Telecommunications and Information Administration (NTIA) for the analytical assessment of mutual interference effects in satellite communication services. The RTC algorithms convert the input carrier-to-interference power ratio (C/I) and modulation specifications of the desired (C) and interferer (I) signals into an output baseband performance degradation. The RTC algorithms also compute a C/I threshold margin for a given output baseband performance requirement. The modulation types and communication services include: (1) companded single-sideband, amplitude-modulation, multichannel telephony; (2) regular or companded, frequency-modulated, multichannel telephony; (3) frequency-modulated analog television; (4) digital coherent multiple-phase-shift keying; (5) single-channel-per-carrier with digital coherent multiple-phase-shift keying; (6) single-channel-per-carrier with frequency-modulated analog voice.