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
SMESE (SMall Explorer For the study of Solar Eruptions) is a Franco-Chinese Microsatellite mission. The scientific objectives of SMESE are the study of coronal mass ejections and flares. Its payload consists of three ...SMESE (SMall Explorer For the study of Solar Eruptions) is a Franco-Chinese Microsatellite mission. The scientific objectives of SMESE are the study of coronal mass ejections and flares. Its payload consists of three instrument packages: LYOT, DESIR and HEBS. LYOT is com-posed of a Ly-α (121.6 nm) coronagraph, a Ly-α disk imager and a far UV disk imager. DESIR is an infrared telescope working at 35μm and 150μm. HEBS is a high energy burst spectrometer working in X-rays and γ-rays covering the 10keV to 600 MeV range. SMESE will be launched around 2011, providing a unique opportunity of detecting and understanding eruptions at the maximum activity phase of the solar cycle in a wide range of energies.展开更多
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。
文摘SMESE (SMall Explorer For the study of Solar Eruptions) is a Franco-Chinese Microsatellite mission. The scientific objectives of SMESE are the study of coronal mass ejections and flares. Its payload consists of three instrument packages: LYOT, DESIR and HEBS. LYOT is com-posed of a Ly-α (121.6 nm) coronagraph, a Ly-α disk imager and a far UV disk imager. DESIR is an infrared telescope working at 35μm and 150μm. HEBS is a high energy burst spectrometer working in X-rays and γ-rays covering the 10keV to 600 MeV range. SMESE will be launched around 2011, providing a unique opportunity of detecting and understanding eruptions at the maximum activity phase of the solar cycle in a wide range of energies.
