| 摘要 |
An antenna unit is used in an antenna array. It comprises a measurement signal receiver for receiving and digitizing a measurement signal from an antenna (501, 502). A time delay unit (503, 504) delays the digitized measurement signal. A data collection receiver (507, 517, 527, 537) receives a data collection frame, and a data collection transmitter (506, 516, 526, 536) is configured to sum the delayed digitized measurement signal with pre-existing data in the received data collection frame and to transmit the so constructed updated data collection frame further. |
