循环数字滤波器 [电子] recursive digital filter
非循环数字滤波器 [电子] nonrecursive digital filter
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在保持子载波数恒定的条件下减少循环前缀的长度，并推导出最优分集合并系数。
We reduce the length of cyclic prefix (CP) while the number of carriers remains invariable and the optimal diversity combination coefficients were deduced.
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