Comments on "A simplified computational algorithm for implementing FIR digital filters"
Ulrich Heute · IEEE Transactions on Acoustics Speech and Signal Processing · 1977
In the above paper,’ a software realization of finite-duration impulse response (FIR) filters with a length N impulse response and general or linear phase was regarded. It makes use of a “moving pointer,” indicating the address of the latest sample x(n) within a dynamic storage array for the state