SATELLITE ACQUISITION USING AN AUTOMATED TECHNIQUE
International Telemetering Conference Proceedings / October 22-25, 1984 / Riviera Hotel, Las Vegas, Nevada === Automated acquisition of a satellite’s downlink signal by the main beam of a ground station’s tracking antenna is complicated by the presence of antenna pattern sidelobes and potential la...
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| Language: | en_US |
| Published: |
International Foundation for Telemetering
1984
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| Online Access: | http://hdl.handle.net/10150/610997 http://arizona.openrepository.com/arizona/handle/10150/610997 |
| Summary: | International Telemetering Conference Proceedings / October 22-25, 1984 / Riviera Hotel, Las Vegas, Nevada === Automated acquisition of a satellite’s downlink signal by the main beam of a ground
station’s tracking antenna is complicated by the presence of antenna pattern sidelobes and
potential large uncertainties in the spatial and/or frequency location of the signal. Sidelobe
acquisition prevents autotracking and telemetry reception, and large uncertainties require
time for coordinated antenna and receiver search. Use of an auxiliary antenna assists in
resolving the sidelobe intercept problem, and a high speed digital receiver alleviates the
problems associated with spatial and frequency uncertainty. The antenna and receiver,
under processor control, constitute a fully automated system. The associated processor
software controls the antenna motion during the search phase, selects the proper receiver
configuration for the expected signal environment, makes the main beam versus sidelobe
intercept decision and switches to autotrack mode upon successful signal acquisition. |
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