| 摘要 |
A real-time signal generation apparatus is used to test a radio receiver having N receive antennas (N > 1). The apparatus includes M digital signal sources (1), (M > 1), each emulating an output of a respective radio transmitter and N groups of M digital multipath fading simulators (3), the simulators of each group deriving digital multipath faded signals from the outputs of the digital signal sources (1). The digital multipath faded signals of each group are combined (4) and noise (5) is added to the resultant combination signals which are all then convened (6) to RF analogue signals to be received by the receive antennas of the radio receiver under test. |
