The results show that Fourier Series Smoothing method is not only an efficient method, but also is easy to estimate image quality using modulation transfer function.
试验结果表明：付立叶级数滤波法是一种行之有效的方法，并便利于用调制传递函数评价影象质量。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.
介绍了DC AC系列智能电源逆变器的功能，软件PWM技术及其交流电压输出调制技术。
Then with the help of the mathematical analysis of the modulation methods in the series resonance circuit and the simulation results, a suited modulation method is chosen.
对串联谐振逆变电路的几种调功方式进行数学分析和仿真研究，比较它们之间的优缺点，结合分析的结果确定调功方式。
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