SIGNAL PROCESSING DEVICE, METHOD AND SYSTEM

摘要

Disclosed is a signal processing device, comprising: a receiving unit for receiving an analogue signal; a frequency band adjustment unit for, when the frequency band of the analogue signal received by the receiving unit is not in a minimal frequency band of a plurality of preset frequency bands, adjusting the analogue signal to the minimal frequency band; and a processing unit for processing the analogue signal adjusted by the frequency band adjustment unit to the minimal frequency band through a signal processing channel of the minimal frequency band. The device provided in the embodiments of the present invention processes signals in different frequency bands through a processing channel in a minimal frequency band, and in this way, fewer radio frequency link components are required to achieve the processing of the signals in different frequency bands so as to reduce the link size of a communication system.