| 摘要 |
A communications intercept device that includes an analog-to-digital converter for digitizing an analog wideband input signal, a first memory for storing the digitized wideband signal, a first digital drop receiver in a first tier for selecting signals stored in the first memory, a controller for controlling which signals are selected, a second memory for storing the signals selected by the first digital drop receiver, and a second digital drop receiver in a second tier for selecting signals stored in the second memory under control of the controller.
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