A quantitative digital analysis method is established in this research. The calculation, analysis and display are realized by MATLAB program.
建立了一种定量的数字分析方法，并运用MAT LAB软件工具实现其计算、分析和显示。
With theoretic testify and experimental analysis, the method of using synergetic order parameter as quantitative index of digital watermark robustness has feasibility and practicability.
从理论推导和实验计算分析，用协同序参量作为数字水印的鲁棒性评判指标，具有一定可行性和实用性。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
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