数字化多道脉冲幅度分析技术研究  

Research on digital multi-channel pulse height analysis techniques

作　　者：肖无云[1] 魏义祥[1] 艾宪芸[1] 敖奇[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《核技术》2005年第10期787-790,共4页Nuclear Techniques

摘　　要：多道脉冲幅度分析技术正在朝数字化方向发展,基于数字信号处理技术的数字化多道具有脉冲处理能力强、速度快、稳定性高和灵活性强等特点。文章分析了数字核脉冲处理关键技术,利用MATLAB完成了梯形成形、数字基线估计、数字极零零极补偿、极零点识别等核心算法的模拟。给出了数字化多道初步总体设计方案,探讨了工程设计中的关键技术问题,为研制国产数字化核谱仪打下了基础。Multi-channel pulse height analysis techniques are developing in the direction of digitalization. Based on digital signal processing techniques, digital multi-channel analyzers are characterized by powerful pulse processing ability, high throughput, improved stability and flexibility. This paper analyzes key techniques of digital nuclear pulse processing. With MATLAB software, main algorithms are simulated, such as trapezoidal shaping, digital baseline estimation, digital pole-zero / zero-pole compensation, poles and zeros identification. The preliminary general scheme of digital MCA is discussed, as well as some other important techniques about its engineering design. All these lay the foundation of developing homemade digital nuclear spectrometers.

关 键 词：多道分析器(MCA) 数字信号处理 梯形成形 基线估计 极零相消 

分 类 号：TL822.4[核科学技术—核技术及应用]