基于FPGA的伽马射线脉冲数字高斯成形算法研究  

Research on Digital Gauss Shaping Algorithm of Gamma-ray Pulse Based on FPGA

作　　者：王海涛[1] 周建斌[2] 谈扬宁[1] 魏雄[1] 

机构地区：[1]核技术应用教育部工程研究中心(东华理工大学),南昌330013 [2]成都理工大学,成都610000

出　　处：《核电子学与探测技术》2013年第11期1334-1337,共4页Nuclear Electronics & Detection Technology

基　　金：国家863项目(2012AA061804);国家自然科学基金(11265001);国家自然科学基金(61161010)

摘　　要：核能谱测量技术的数字化已成为一大发展趋势,而如何在数字化处理芯片上实现数字滤波成形算法是其关键技术之一。论文以S-K滤波器模型为基础对数字化伽马能谱测量中的数字高斯成形算法进行了推导分析和Matlab仿真,并结合SD编码方法对该算法进行了改进与优化,使其能够在FPGA芯片上予以编程实现,且通过具体的实验验证了该方法的正确性和可行性,效果良好。Digital nuclear spectrum measurement technology has become a trend , and how to achieve digital fil-ter-shaping algorithm on the digital processing chip is one of the key technologies .Base on S-K filter model , digital Gauss shaping algorithm of digital gamma spectrum measurement is deduced and analyzed in this article , and simulated the nuclear pulse by the use of Matlab .In order to apply the algorithm in FPGA chip , this article improves and optimizes it with SD coding method .And through the experiments the correctness and feasibility of the method are verified , and the effect is good .

关 键 词：现场可编程门阵列 数字高斯成形 SD编码 

分 类 号：TL822.4[核科学技术—核技术及应用]