| 主权项 |
1. An apparatus including a system for testing a radio frequency (RF) multiple-input-multiple-output (MIMO) device under test (DUT), comprising:
a plurality of RF signal ports to convey a corresponding plurality of MIMO signals, including a plurality of receive MIMO signals received from a DUT; signal routing circuitry coupled to said plurality of RF signal ports to provide
a plurality of replica MIMO signals corresponding to said plurality of receive MIMO signals, anda composite signal including said plurality of receive MIMO signals; first signal processing circuitry coupled to said signal routing circuitry to provide one or more processed signals by processing at least one of
said composite signal, anda first portion of said plurality of replica MIMO signals; signal conversion circuitry coupled to said signal routing circuitry to convert a second portion of said plurality of replica MIMO signals to provide one or more converted signals; second signal processing circuitry coupled to said first signal processing circuitry and said signal conversion circuitry to process said one or more processed signals and said one or more converted signals to provide test data indicative of one or more signal transmission performance parameters of said DUT. |
