Simulation of Digital Signal Processing Algorithms in Time Domain

The last step in the design of digital signal processing algorithms is to check the results. The purpose of the inspection is to detect possible design errors and to check whether the algorithm can fulfill the desired requirements. An effective check of design result is simulation. It is advisable to perform the simulation in a time domain. By applying a suitable excitation signal, the operation of the algorithm in the frequency domain can also be checked. Mathematical programs running on a personal computer, such as MATLAB, provide an almost linear simulation environment due to the accuracy of the numerical representation. The implemented digital signal processing algorithm usually runs in an environment that provides lower calculation accuracy. The time domain analysis also allows the insertion of non-linear points.