| 一种精确测量周期信号参数的窗口和内插算法 |
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| 引用本文： | 喻胜,陈光.一种精确测量周期信号参数的窗口和内插算法[J].电子科技大学学报(社会科学版),1999(5). |
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| 作者姓名： | 喻胜 陈光 |
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| 作者单位： | 电子科技大学自动化系CAI室!成都，610054，电子科技大学自动化系CAI室!成都，610054 |
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| 摘 要： | 提出了一种基于离散傅里叶变换的改进的周期信号参数的测量算法。该算法通过对时域信号加合适的窗函数，并在频域采用相应的内插算法，可以有效地减小测量过程中信号的频谱泄漏，得到精确的测量结果。仿真实验通过与已有算法的比较证明了该方法的有效性和先进性;噪声分析实验证明了该方法的稳定性。
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| 关 键 词： | 离散傅里叶变换 频谱泄漏 窗函数 内插算法 |
A High-accuracy Windows and Interpolation Algorithm for Periodic Signal Measurement |
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| Yu Sheng ,Chen Guangju.A High-accuracy Windows and Interpolation Algorithm for Periodic Signal Measurement[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1999(5). |
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| Authors: | Yu Sheng Chen Guangju |
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| Abstract: | A new algorithm based on the discrete Fourier transform (DFT) is presented for the determination of the parameters that characterize a periodic signal. The accuracy measurement of the signal can be achieved with a suitable windowing operation in time domain and an interpolation algorithm in frequency domain. The simillation result shows the availability and superiority of the algorithm compared with existing algorithms. The stability of the new method with respect to noise is verified by the noise analysis. |
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| Keywords: | discrete Fourier transform spectral leakage window function interpolation algorithm |
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