- #1
EvLer
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Does anyone know of a good tutorial/book that explains Butterworth filter and filters in general?
Thanks in advance.
Thanks in advance.
Butterworth Filter Tutorials & Books
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Discussion Overview
The discussion revolves around finding resources, tutorials, and books related to Butterworth filters, with a focus on both analog and digital implementations. Participants express their needs for detailed explanations of the underlying concepts and practical applications, particularly in the context of homework and design challenges.
Discussion Character
- Exploratory
- Technical explanation
- Homework-related
Main Points Raised
- One participant seeks recommendations for tutorials or books on Butterworth filters, emphasizing the need for clarity and detail.
- Another participant asks whether the interest lies in analog or digital filters, suggesting a digital filter book that includes some analog content.
- A participant expresses a need for a basic yet detailed explanation of the polynomial origins and standard notations used in analog filters, indicating a lack of understanding despite being able to complete homework.
- A suggestion is made to consider the book "Introduction to Random Signals and Applied Kalman Filtering" for advanced work, although the participant is not a graduate student.
- One participant shares their experience with Google searches yielding interesting resources related to analog filter polynomials, suggesting others try similar searches.
- A participant describes a practical issue with designing a high pass Butterworth filter, specifically regarding phase shift and cutoff frequency, and seeks advice on achieving the desired specifications.
Areas of Agreement / Disagreement
Participants generally express individual needs and challenges without a consensus on specific resources or solutions. Multiple views on the types of filters and their implementations are present, indicating an unresolved discussion.
Contextual Notes
Some participants mention specific textbooks and resources, but there is no agreement on a singular recommended resource. The discussion includes varying levels of understanding and specific design challenges that remain unresolved.
Who May Find This Useful
Individuals interested in learning about Butterworth filters, particularly students and practitioners in electrical engineering or related fields, may find this discussion relevant.
- #2
berkeman
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Are you interested mainly in the analog aspects like with opamps, or digital filters? The digital filter book that I suggested in a recent thread is pretty good, and it talks a little about analog implementations in a later chapter. The Horowitz and Hill electronics book has a pretty good intro, but doesn't go into a lot of depth about the different filter topologies and tradeoffs.
- #3
EvLer
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I need analog, our textbook (Lin & DeCarlo) has a chapter, but I need something that explains how the polynomial originates, what's the use of all the terms like inverted ohm's sign and all the standard notations used. In other words, something basic and detailed 
.
I can do the hw, but i don't feel like i have a good grasp on what is going on.
.I can do the hw, but i don't feel like i have a good grasp on what is going on.
- #4
Cyrus
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Introduction to random signals and applied kalman filtering:
Brown-Hwang.
If those kinds of filters are what ur talking about, but that's for grad work. I have the book, I am not a grad student, but I was told its good by ppl at work so I bought it. Hope to read thorough it someday in the near future.
Brown-Hwang.
If those kinds of filters are what ur talking about, but that's for grad work. I have the book, I am not a grad student, but I was told its good by ppl at work so I bought it. Hope to read thorough it someday in the near future.
- #5
berkeman
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I googled the following:EvLer said:I need analog, our textbook (Lin & DeCarlo) has a chapter, but I need something that explains how the polynomial originates, what's the use of all the terms like inverted ohm's sign and all the standard notations used. In other words, something basic and detailed
I can do the hw, but i don't feel like i have a good grasp on what is going on.
analog filter polynomial tutorial butterworth cheby
and got lots of interesting hits. Maybe try that google to see if it helps.
- #6
ankitdaftary
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Hi all,
I am designing a high pass filter which has cut off frequency of 50 Hz. I have chosen butterworth filter to do this. But the problem is, the output shows a phase shift and the cutoff is about 30 Hz..Could anyone give a suggestion of how to have zero phase shift and cut off at 50Hz?
I am designing a high pass filter which has cut off frequency of 50 Hz. I have chosen butterworth filter to do this. But the problem is, the output shows a phase shift and the cutoff is about 30 Hz..Could anyone give a suggestion of how to have zero phase shift and cut off at 50Hz?
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