The complexity analysis of the fixed window algorithm and the optimal length of window are also discussed.
最后给出了固定窗口算法的复杂性分析，并讨论了窗口宽度的最佳选取。
The criteria of window functions are discussed in detail, and the optimal length of window is obtained by means of optimal frequency resolutions.
本文详细研究了其窗函数的选取准则，给出了在最佳频率分辨率意义上的最佳窗函数。
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