When designing the LPF based on ideal Op Amps,the coupling effects of nonideal Op Amps are omitted, resulting in dissatisfactory performance of LPF.

• 基于理想运算放大器模型所构建的低通滤波器，未考虑非理想器件参数的影响，所设计出的低通滤波器响应性能并不理想。