Open Access
表3
不同信道下的门限信噪比 dB
系统 | AWGN信道 | 星间信道 | 瑞利信道 | ||
K=3 | K=2 | K=1 | |||
码分多址系统 | 20 | 27 | 29 | 33 | 38 |
稀疏扩频系统 | 18 | 25 | 27 | 30 | 33 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.