中频宽带信号采集存储回放系统设计

目前中频宽带信号在通讯及雷达领域中的应用十分广泛,为了将无法实时处理的信号后续再处理以及将采集到的信号在其他地点重现,设计了一种中频宽带信号采集存储回放系统.基于FPGA(field-programmable gate array)+ADC(ana-log-to-digital converter)/DAC(digit...

Design of IF broadband signal acquisition, storage and playback system

At present, IF broadband signals are widely used in the fields of communication and radar. In order to reprocess the signals that cannot be processed in real time and reproduce the collected signals in other locations, this paper designs an IF broadband signal acquisition, storage and playback system. Based on the system structure of FPGA( field-programmable gate array)+ADC(analog-to-digital converter)/DAC(digital-to-analog converter), the intermediate frequency wideband signal is collected and transmitted to the host computer through PCIE for storage, and then sent to DACfor playback through PCIE(peripheral component interconnect express), thus completing the collection, storage and playback of the signal, which has high universality and portability. The intermediate frequency signals could be acquired,stored and played back with a bandwidth of 400M at a sampling rate of 1G, by which the requirements of the acquisition ,training and storage and playback system could be fully met in high-speed broadband signal acquisition equipment.