Browsing by Author "ULUBEY, Orhan"
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Item OPTIMIZATION OF SATELLITE TRANSPONDER UTILIZATION BASED ON SIMULATION RESULTS(2015-01-30) ULUBEY, Orhan; KARA, AliCommunication satellite transponder performance is characterized through the manufacturing process with extensive tests. However, such performance tests are always carried out with unmodulated carriers and they have shortcomings when it is necessary to analyze the transponder behavior with modulated multicarrier scenarios faced in actual utilization of the satellite. To overcome this problem it is necessary to simulate the behavior of transponder and obtain results to aid in link budget calculations. This thesis reviews the communication impairment sources on a satellite transponder and introduces a transponder simulator based on TURKSAT-3A satellite measured data. Simulation results are used to characterize the degradation introduced by the transponder for various actual utilization scenarios and suggestions made for optimal use.