| 摘要 |
A seismic system uses a plurality of remote acquisition units in each of which geophone signals in digital form are temporarily stored in a buffer for near-real-time transmission by a transmitter. The whole of the digital data is also stored in a bulk store within the acquisition unit, from which it can be retrieved and transmitted under control of signals received by a receiver. This allows a central control unit to cause lost or low quality data to be retransmitted in a flexible manner.
|
