A system for monitoring a maritime environment comprises a plurality of radio detection and ranging devices configured to perform a synchronous detection of a maritime environment object, to transmit a plurality of sensor signals respectively relating to a location of the maritime environment object over a communication network, and to receive a synchronization signal. Each radio detection and ranging device is configured to synchronize its operation according to the synchronization signal. A synchronization source is configured to generate the synchronization signal for synchronizing operations of radio detection and ranging devices, and to provide the synchronization signal over the communication network to the radio detection and ranging devices. A processing device is configured to receive the plurality of sensor signals from the plurality of radio detection and ranging devices, and to determine the location of the object in the maritime environment upon the basis of the plurality of sensor signals.