| 基于CZT的频谱细化算法及应用 |
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| 引用本文： | 樊新海,曾兴祥,张丽霞,张传清.基于CZT的频谱细化算法及应用[J].装甲兵工程学院学报,2012,26(1):59-62. |
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| 作者姓名： | 樊新海 曾兴祥 张丽霞 张传清 |
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| 作者单位： | 装甲兵工程学院机械工程系,北京,100072 |
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| 摘 要： | 针对复杂信号频域特征提取问题,利用Delphi语言编写了Zoom-FFT和基于CZT的频谱细化方法应用软件,以某型坦克传动箱振动速度信号为例进行了对比分析,验证了算法的有效性和程序设计的正确性。结果表明：基于CZT的频谱细化方法具有运算效率高、细化效果好等优点,可以在复杂信号分析中推广应用。
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| 关 键 词： | 信号处理 频谱细化分析 线性调频Z变换 特征提取 |
Algorithm and Application of Spectrum Zoom Based on Chirp Z Transform |
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| FAN Xin-hai,ZENG Xing-xiang,ZHANG Li-xia,ZHANG Chuan-qing.Algorithm and Application of Spectrum Zoom Based on Chirp Z Transform[J].Journal of Armored Force Engineering Institute,2012,26(1):59-62. |
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| Authors: | FAN Xin-hai ZENG Xing-xiang ZHANG Li-xia ZHANG Chuan-qing |
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| Institution: | (Department of Mechanical Engineering,Academy of Armored Force Engineering,Beijing 100072,China) |
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| Abstract: | In view of complex signal feature extraction in frequency domain,software of spectrum zoom based Chirp Z Transformation(CZT) and Zoom-FFT are programmed by Delphi.The availability of two algorithms and the correctness of software are validated by contradistinctive analysis of vibration velocity of tank wheel box.The result indicates that the method of spectrum zoom based on CZT boasts of efficient operation and good effect,which can be generalized in complex signal analysis. |
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| Keywords: | signal processing spectrum zoom analysis Chirp Z Transformation(CZT) feature extraction |
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