关于用传递函数来写滤​波器，这方面不是很懂​，大神们有资料吗

2025 7 31
1 个回答
回答已采纳
更新时间：2025 8 6
6 次查看（30 天）

 采纳的回答

shantanu
shantanu 2025-8-4

0 个投票

Hi
I see you are trying to implement a Low Pass filter with a cutoff frequency of 20Hz so the above documentation would help you with what to put in numerator and denominator while implementing.
Kindly refer to this documentation on how to implement filters using Transfer functions.
https://www.mathworks.com/help/simulink/slref/transferfcn.html
Hope that resolves your query

5 个评论
显示 3更早的评论 隐藏 3更早的评论

饕餮王
饕餮王 2025-8-5
Thanks for your answer！I mainly don't understand how to write a transfer function for a filter, not that the transfer function itself is that difficult
shantanu
shantanu 2025-8-5
Could you please provide a few more details about your model or the specific implementation you have in mind?
饕餮王
饕餮王 2025-8-5
thank you, yes, I want to use a transfer function to write a filter, but I don't know what its mathematical formula is, all I have come into contact with is RC filter, but this formula is not related to resistance R and capacitor C, I am ignorant with it.
shantanu
shantanu 2025-8-5
Hi,
I understand you want to use transfer function to write a filter but you are stuck in the mathematical formulation of this. Could you provide the model details/implementation?
You can have a look at these and see if it helps.
  1. https://www.youtube.com/watch?v=VFt3UVw7VrE
  2. Filter Designer - Design filters starting with algorithm selection - MATLAB
  3. https://www.mathworks.com/help/signal/filter-design.html
饕餮王
饕餮王 2025-8-6
wow!I get this model form here，matlab has it video on youtube but I can nou find it.You help me a lot , thanks

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 数字滤波器分析 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!