摘要
本文针对多相FIR插值滤波器各子相系数非对称的情况下,对每个子相的系数进行数学计算公式的等效变换,得出各子相系数对称,再进行卷积计算,减少各子相运算过程中的乘法器个数,然后对各子相输出的结果再进行简单的计算,得出最终的计算结果,从而达到节省乘法器资源的目的。
In this paper,in the case that the coefficients of each sub-phase of the polyphase fir interpolation filter are asymmetric,the equivalent transformation of the mathematical calculation formula is carried out for each sub-phase coefficient,and then the convolution calculation is carried out to reduce the number of multipliers in the operation process of each sub-phase,and then the output results of each sub-phase are simply calculated to obtain the final calculation results To save the multiplier resources.
出处
《中国集成电路》
2020年第11期46-49,共4页
China lntegrated Circuit
关键词
FIR
变换
乘法器
多相
fir
transform
multiplier
polyphase
