An S-band telemetry receiver system for deep space applications
Abstract
The S-band telemetry receivers and the subcarrier demodulators of the telemetry system built to receive the signals transmitted from the HELIOS space probe are described. The S-band receiver includes a digitally implemented phase-locked loop. Polarization tracking is possible in a two-channel mode as well as in a single-channel mode. In the subcarrier demodulator assembly the subcarrier is demodulated before demodulating the RF-carrier. Good noise thresholds and low degradation are achieved because remodulation is used in the subcarrier loop. The equipment works in a fully computer-controlled station, including all acquisition procedures.
- Publication:
-
International Instrumentation-Automation Conference
- Pub Date:
- 1974
- Bibcode:
- 1974isa..conf...69L
- Keywords:
-
- Helios Project;
- Microwave Transmission;
- Radio Receivers;
- Radio Telemetry;
- Spacecraft Communication;
- Carrier Frequencies;
- Channels (Data Transmission);
- Demodulators;
- Interplanetary Spacecraft;
- Pcm Telemetry;
- Phase Locked Systems;
- Phase Shift Keying;
- Space Communications, Spacecraft Communications, Command and Tracking