摘要
核脉冲信号的高斯滤波成形广泛应用于核谱仪系统中。利用Multisim设计了CR-(RC)^(m)和多级Sallen-Key高斯成形电路,实现了模拟核脉冲信号在不同参数条件下的高斯成形;基于基尔霍夫定律分析推导出CR-(RC)^(m)和Sallen-Key电路的数值递推函数,在MATLAB平台中实现了实际核信号的数字化高斯成形处理。通过获取两种成形电路、数值递推丽数在不同参数下的高斯成形效果,结果表明仿真与实际核信号的高斯成形均能取得较理想的结果,为核脉冲信号的高斯滤波成形处理提供了设计参考。
Gaussian filter shaping of nuclear pulse signals is widely used in nuclear spectrometer systems.The CR-(RC)^(m)and multi-stage Sallen-Key Gaussian shaping circuits are designed by Multisim to realize Gaussian shaping of simulated nuclear pulse signals under different parame-ters.Based on Kirchhoffs law analysis,the numerical recursive functions of CR-(RC)^(m)and Sallen-Key circuits are derived.Then the digital Gaussian forming process of actual nuclear signals is re-alized in MATLAB platform.By obtaining the Gaussian forming effect of two forming circuits and numerical recursive functions under different parameters,the results show that the Gaussian forming of the simulation and the actual nuclear signal can achieve better results,and provide a design reference for the Gaussian filtering forming process of the nuclear pulse signal.
作者
卢炜煌
张怀强
李卓岱
LU Wei-huang;ZHANG Huai-qiang;LI Zhuo-dai(Engineering Research Center of Nuclear Technology Application,Ministry of Education,East China University of Technology,N anchang 330013,China;School of Nuclear Science and Engineering,East China University of Technology,Nanchang 330013,China)
出处
《核电子学与探测技术》
CAS
北大核心
2020年第4期604-609,共6页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(11665001,41864007)
国家重点研发计划“重大科学仪器设备开发”重点专项(2017 YFF0106503)
核技术应用教育部工程研究中心开放基金(HJSJYB2014-3)资助。
