首先将二维idct转换为两个一维idct变换，根据蝶形算法进一步转换为矩阵的乘加运算。
First, the 2-d IDCT is transformed into two cascaded 1-d IDCT. Then 1-d IDCT can be implemented by multiplication and addition of matrix according to butterfly computation.
在高数据采样率，特别是大时宽带宽积条件下，时域的数字正交采样和脉冲压缩包含大量的乘加运算。
The computation burden of the quadrature sampling and pulse compression is huge when the data rate is high and the time bandwidth product is not small.
它还允许您对两个统计数据执行诸如加、减、乘、除等数学运算。
It also lets you perform mathematical operations like addition, subtraction, division, and multiplication on two statistics.
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