提出了一种运用符号和数值计算与离散非线性优化相结合的滤波器设计方法——设计空间法.把滤波器的技术指标.即滤波器设计中要用到的一组参数映射到设计空间,并根据给定的准则寻找该设计空闻的最佳解决方案。最后通过实例阐述了用设计空间法设计的低Q值RC滤波器,并且得到了较好的设计结果。
A kind of active filter design method, design dimension method by using sign and number calculation combined with dispersed non-linear optindzation is presented in this paper. By mapping a set of parameters of filters to design dimension, and according presented technique index to search the best solution. A example for RC active fdter with low Q value on design dimension methods is discussed in the end, and got to a better design result.