核电子学与探测技术
覈電子學與探測技術
핵전자학여탐측기술
NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY
2014年
2期
254-256,261
,共4页
张怀强%吴和喜%汤彬%张雄杰
張懷彊%吳和喜%湯彬%張雄傑
장부강%오화희%탕빈%장웅걸
数字核谱仪%波形数字化%数字核信号处理%现场可编程门阵列
數字覈譜儀%波形數字化%數字覈信號處理%現場可編程門陣列
수자핵보의%파형수자화%수자핵신호처리%현장가편정문진렬
digital nuclear spectrometer%waveform digitalization%digital nuclear signal processing%FPGA
核能谱是核物理研究、射线探测和核技术应用领域中获取的重要信息,对其测量技术的改进一直为热点研究问题。论文基于FPGA设计一套数字核信号处理系统,对高速ADC采样后的数字核信号通过FPGA控制的高速USB接口电路,直接传送给计算机的测试平台以实现核信号的离线处理,同时该数字核信号在FPGA中实现其滤波成形、堆积识别,基线恢复等功能,得到的能谱通过USB接口传送给计算机。通过测试,系统既能实现原始核信号的传输与保存,又能实现数字核信号的在线处理。
覈能譜是覈物理研究、射線探測和覈技術應用領域中穫取的重要信息,對其測量技術的改進一直為熱點研究問題。論文基于FPGA設計一套數字覈信號處理繫統,對高速ADC採樣後的數字覈信號通過FPGA控製的高速USB接口電路,直接傳送給計算機的測試平檯以實現覈信號的離線處理,同時該數字覈信號在FPGA中實現其濾波成形、堆積識彆,基線恢複等功能,得到的能譜通過USB接口傳送給計算機。通過測試,繫統既能實現原始覈信號的傳輸與保存,又能實現數字覈信號的在線處理。
핵능보시핵물리연구、사선탐측화핵기술응용영역중획취적중요신식,대기측량기술적개진일직위열점연구문제。논문기우FPGA설계일투수자핵신호처리계통,대고속ADC채양후적수자핵신호통과FPGA공제적고속USB접구전로,직접전송급계산궤적측시평태이실현핵신호적리선처리,동시해수자핵신호재FPGA중실현기려파성형、퇴적식별,기선회복등공능,득도적능보통과USB접구전송급계산궤。통과측시,계통기능실현원시핵신호적전수여보존,우능실현수자핵신호적재선처리。
Nuclear spectrum has been an important information in nuclear physics , radiation detection and nu-clear technology application field , how to improve its measurement technology has been hot research issue .This paper designs a set of digital nuclear signal processing system based on FPGA , the digital nuclear signal after high-speed ADC sampling are transmitted to the test platform of computer through the high -speed USB inter-face circuit, which is controlled by FPGA , the digital nuclear signal are processed offline .At the same time, the signal is transmitted to the FPGA system , which to realize the filter shaper , baseline restorer , pulse pile_up identification .By testing , the system can realize transmission and preservation of the original nuclear signal , but also complete the digital nuclear spectrometer function .