An acquisition system of digital nuclear signal processing for the algorithm development  

作　　者：WANG Peng ZHANG Ruanyu YAN Yangyang HAO Dejian HUANG Ning WU Qingxing AN Zhu 

机构地区：[1]Institute of Nuclear Science and Technology of Sichuan University,Key Laboratory of Radiation Physics and Technology,Ministry of Education [2]The College of Physics Science and Technology of Sichuan University

出　　处：《Nuclear Science and Techniques》2013年第6期115-121,共7页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(NSFC)projects(No.1075111)

摘　　要：A principle and method of constructing the digital acquisition system is presented in this work,which is convenient for the study on the theories and algorithms of digital nuclear signal processing.The hardware system of the digital acquisition system consists of front-end controller,waveform digitizer and PC workstation,on which the software system has been developed based on Visual C++under Windows environment.The alterable-frequency sampling(AFS)algorithm and the alterable-frequency trapezoidal filter(AFTF)algorithm have also been studied in the real-time environment,along with a digital nuclear spectrum acquisition system being set up based on the new algorithms and theγ-ray spectra of 241Am being shown.A useful experimental platform could be provided by this work for the successive work such as the development of global digitized nuclear measurement system and the study of digital nuclear signal processing.A principle and method of constructing the digital acquisition system is presented in this work, which is convenient for the study on the theories and algorithms of digital nuclear signal processing. The hardware system of the digital acquisition system consists of front-end controller, waveform digitizer and PC workstation, on which the software system has been developed based on Visual C＋＋ under Windows environment. The alterable-frequency sampling （AFS） algorithm and the alterable-frequency trapezoidal filter （AFTF） algorithm have also been studied in the real-time environment, along with a digital nuclear spectrum acquisition system being set up based on the new algorithms and the γ-ray spectra of 241Am being shown. A useful experimental platform could be provided by this work for the successive work such as the development of global digitized nuclear measurement system and the study of digital nuclear signal processing.

关 键 词：数字信号处理 数字采集系统 研究开发 算法 WINDOWS环境 波形数字转换器 可变频率 前端控制器 

分 类 号：TL82[核科学技术—核技术及应用]