Optimization Design of Submodule Cascade Sequence in Biomedical Circuits

A biomedical circuit usually consists of multiple submodules cascading together (e.g., low pass filters, high pass filters, or band pass filters, etc.). Cascade sequence between these submodules impacts on the anti-powerline interference ability of the whole circuit. In order to get the best anti-powerline interference ability for the circuit, an optimization design method of submodule cascade sequence is proposed. Firstly, a mathematical optimization model is build, which takes the equivalent amplification factor of the intermediate stage powerline interference as the objective function and the submodule cascade sequence as the independent variable, and then the optimization algorithm to solve the model is described. Experiment results show that optimization design of submodule cascade sequence for biomedical circuits is necessary and the proposed model and its solving algorithm are effective.