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一维离散卷积的定义是: 给定一维数组 a

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一维离散卷积的定义是:

给定一维数组 a = [9, 8, 7], v = [3, 2, 1],它们的离散卷积结果是:()


  • [27, 42, 46, 22, 7]
  • [27,40, 44, 20, 7]
  • [27, 38, 46, 20, 7]
  • [27, 36, 48, 18, 7]
S(n) = (a * v) [n] =
s(0)=a(0)*v(0)+a(1)*v(0-1)+a(2)*v(0-2)+a(3)*v(0-3) =27
s(1)=a(0)*v(1-0)+a(1)*v(1-1)+a(2)*v(1-2)+a(3)*v(1-3)=18+24=42
发表于 2019-04-11 13:21:17 回复(0)
当n = 0 时,只有a[0] 和 v[0] 满足,9 * 3 = 27;
当n = 1时, 有a[0] 和 v[1] ,a[1] 和 v[0] 满足, 9 * 2 + 8 * 3 = 42 ;
。。。。
发表于 2019-04-25 15:04:16 回复(0)