The electromagnetic radiation will result in informa- tion leakage being recovered when computers work. This article presents a high-speed real-time data acquisition system based on peripheral component interconnect ...The electromagnetic radiation will result in informa- tion leakage being recovered when computers work. This article presents a high-speed real-time data acquisition system based on peripheral component interconnect （PCI） bus and field programmable gate array （FPGA） for sampling electromagnetic radiation caused by video signal. The hardware design and controlling flow of each module are introduced in detail. The sampling rate can reach 64 Msps and system transfers speed can be up to 128 Mb/s by using time interleaving, which increases the overall sampling speed of a system by operating two data converters in parallel.展开更多
由于科学研究的需要,目前空间探测器的设计越来越复杂。短时间内需要采集的信号多达数百路、甚至上千路,普通的数据采集系统无法适应此任务。本文为中法合作研制的太阳爆发小卫星(SMall Explorer for Solar Eruptions,简称SMESE)设计了...由于科学研究的需要,目前空间探测器的设计越来越复杂。短时间内需要采集的信号多达数百路、甚至上千路,普通的数据采集系统无法适应此任务。本文为中法合作研制的太阳爆发小卫星(SMall Explorer for Solar Eruptions,简称SMESE)设计了以FPGA为核心的4路数据采集系统。测试结果表明,该系统完全适应太阳爆发小卫星的科学任务。系统中采用了Xilinx公司的FPGA芯片Spartan3 XC3S400作为核心控制部件;峰值保持芯片采用AMPTEK公司推出的专为空间应用设计的高速低功耗、极低衰减率的峰值保持芯片PH300;A/D变换芯片采用Analogy Devices公司的16位高速A/D转换芯片AD976A(速率200ksps);CYPRESS公司的双端口RAM芯片CY7C136-15NC作为FPGA和后端MCU的数据交换接口。展开更多
基金the National Natural Science Foundation of China （60331010, 60271018）.
文摘The electromagnetic radiation will result in informa- tion leakage being recovered when computers work. This article presents a high-speed real-time data acquisition system based on peripheral component interconnect （PCI） bus and field programmable gate array （FPGA） for sampling electromagnetic radiation caused by video signal. The hardware design and controlling flow of each module are introduced in detail. The sampling rate can reach 64 Msps and system transfers speed can be up to 128 Mb/s by using time interleaving, which increases the overall sampling speed of a system by operating two data converters in parallel.
文摘由于科学研究的需要,目前空间探测器的设计越来越复杂。短时间内需要采集的信号多达数百路、甚至上千路,普通的数据采集系统无法适应此任务。本文为中法合作研制的太阳爆发小卫星(SMall Explorer for Solar Eruptions,简称SMESE)设计了以FPGA为核心的4路数据采集系统。测试结果表明,该系统完全适应太阳爆发小卫星的科学任务。系统中采用了Xilinx公司的FPGA芯片Spartan3 XC3S400作为核心控制部件;峰值保持芯片采用AMPTEK公司推出的专为空间应用设计的高速低功耗、极低衰减率的峰值保持芯片PH300;A/D变换芯片采用Analogy Devices公司的16位高速A/D转换芯片AD976A(速率200ksps);CYPRESS公司的双端口RAM芯片CY7C136-15NC作为FPGA和后端MCU的数据交换接口。
