Research On Real-Time Ber Estimation In Satellite Downlink
2019 18TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN)(2019)
摘要
To overcome the disadvantage of BER measurement which must be tested in close loop with the source data foreknown, a online real time BER estimation method based on EVM which is analyzed in the prospect of signal quality is proposed, and a test system is built to simulate the satellite downlink. Experiments results show that the deviation between BER predicted and the measured is no more than 33%, which is acceptable in the BER test.
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关键词
BER estimation, EVM, QPSK, Satellite downlink
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