一种基于ChirpZ变换的频谱细化实现方案与仿真  

A Spectrum Zooming Scheme Based on Chirp Z Transform(CZT) and its Simulation

作　　者：谷云高[1] 石彦君[1] 王文谦 

机构地区：[1]邯郸学院,河北邯郸056005 [2]衡水市广播电视局,河北衡水053000

出　　处：《电讯技术》2009年第5期93-95,共3页Telecommunication Engineering

摘　　要：受采样时间和数据处理速度的限制,高分辨率频谱分析一直是实时系统的应用难题之一。基于DSP信号处理的特点,给出了一种基于线性调频Z变换(CZT)的频谱细化实现方案。实验结果表明该方案具有分辨率高、速度快的特点,具有较高的工程应用价值。Because of the limits of sampling time and data processing speed, high resolution spectrum analysis is always a difficult problem in real time systems. According to the features of DSP, this paper presents a spectrum zooming analysis method based on Chirp Z Transform（CZT）. Simulation results show that this method is featured by high resolution and high speed, and has high application value.

关 键 词：信号处理 频谱分析 频谱细化 线性调频Z变换 

分 类 号：TN911[电子电信—通信与信息系统]