核脉冲信号数字高斯成形模型的建立与仿真  

THE SIMULATION AND ESTABLISHMENT OF DIGITAL GAUSSIAN FILTERING ON NUCLEAR PULSE SIGNAL

作　　者：周伟[1,2] 周建斌[2] 方方[2] 朱星[2] 刘易[2] 李扬红[2] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221116 [2]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《物探与化探》2012年第2期260-262,共3页Geophysical and Geochemical Exploration

摘　　要：详细阐述了一种以Sallen-Key滤波器为基础的新型数字高斯成形的方法。运用二阶微分方程建立高斯成形数学模型,在模型解算过程中利用数值微分算法得到一个通用的输入信号与输出信号的数值递推解,从而实现了核脉冲信号的数字高斯成形。通过标准指数信号的模拟以及实际测量信号的模拟,确定了数字高斯成形的参数。A novel model of digital Gaussian filtering is presented in this paper based on Sallen-Key filter.Depending on a second-order differential equation,the authors obtained a general numerical recursive root between the input and the output by applying numerical differentiation algorithm,and implemented digital Gaussian filtering of nuclear pulse signal as well.The operator of the model is confirmed by standard index signal and actual measurement signal simulation.

关 键 词：核脉冲信号 Sallen-Key滤波器 数字高斯成形 数值微分法 

分 类 号：P631.6[天文地球—地质矿产勘探]