Hardware Design Of Bridge System For Signal Acquisition Arrays

Signal acquisition array is a hot research topic in modern signal processing technology.With the advantages of high spatial resolution and high sampling rate,it is widely used in maritime seismic exploration and sonar exploration.As an important part of the signal acquisition array,the bridge system is responsible for receiving and forwarding the data collected by the array element to the signal processing equipment,it provide a stable and reliable data bridging path for the acquisition array.Therefore,this thesis researches and develops a bridge system hardware platform for signal acquisition array based on QorIQ multi-core processor.System use 4 Fast Ethernet optical interface to receive data collected by the array element,through the QorIQ processor to achieve data collection,pre-processing and real-time forwarding Utilize 2 gigabit Ethernet optical interface external switch to expand data analysis platform or communicate with signal processor and data logger via LVDS interface to realize data acquisition,real-time analysis and playback.In addition,Bridge system expansion Multi-channel RS422 serial port for the management of local sensor data records to achieve real-time monitoring of the local work environment.The bridge system based on the QorIQ multi-core processor signal acquisition array has been developed and tested in this dissertation.The laboratory simulation data verified that the work is reliable and stable and meet the design requirements.