Comments on "A fast computation of complex convolution using a hybrid transform"
M. Bhattacharya, Ramesh K. Agarwal · IEEE Transactions on Acoustics Speech and Signal Processing · 1981
In the hybrid transform approach for computing convolution, the number of additions and shifts can be reduced appreciably by proper ordering of factors. Similarly, additions and shifts in the case of computation of complex convolution can be reduced in the approach presented by Reed and Truong [1].