| 摘要 |
A received signal is provided to an automatic gain controller (41, 71, 120, 121) which normalizes the received signal to a known voltage level. The automatic gain controller (41, 71, 120, 121) is also provided with an OUNS noise signal through a voltage controlled attenuator (12, 72, 100, 101). The voltage controlled attenuator (12, 72, 100, 101) is controlled by an OUNS controller (12) such that the output of the VCA (12, 72, 100, 101) represents the desired other user noise level to be combined with the received signal in the automatic gain controller (41, 71, 120, 121).
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