摘要
从NQR炸药探测系统数字信号处理与分析的角度出发,介绍了CIC数字滤波器的原理和使用方法。和传统常使用的FIR及IIR数字滤波器相比,CIC滤波器具有可抽取的特点。在NQR炸药探测系统中,数字接收机多采用大倍率过采样体制,面对高速处理海量数据的需求,CIC数字滤波器充分体现了灵活、高效、实时的优势,为各种炸药成份的NQR信号提取、处理与分析提供了良好的解决方法。
It introduce the principle and application of CIC Digital-filter from Digital Signal Processing Analyzing in NQR Explosive Detection System.Compared with FIR and IIR Digital-filter traditional used,CIC Digital-filter can be decimated.In NQR Explosive Detection System,Digital Receiver often adopts big over-sampling ratios.Facing requirement of high-speed processing great quantity data,CIC filter has flexible,high-efficiency,real-time advantage.CIC Digital-filter provides a favorable method for NQR signal acquiring,processing and analyzing from some kinds explosives.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2010年第10期1341-1344,共4页
Nuclear Electronics & Detection Technology
