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(@John1234567890)


Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/22/2019)
Hello Rick,If I am unable to understand the math then the problem will not be with your book.  The real value comes in being able to ask someone who is patient...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/21/2019)
Hello Laurent,I am halfway through chapter 2 in Rick's book and am digesting the concepts and principles introduced so far.  The math in later chapters will be...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/13/2019)
Hello Rick,If you don't mind, I have two last questions. Your description includes the divisor 200 (i.e. 64Fs/200). Is the number 200 determined by the filter order...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/12/2019)
Hello Rick,Your book will be delivered to me in a few days and I will read these chapters. John

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/12/2019)
Hello Rick, 1) Thank you for that description. I will add this to the user manual and it will buy me some time to sit down and learn the basics about digital filters. 1a)...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/11/2019)
Hello Laurent,I have not dealt with digital filters before.  I have to acknowledge I really do not know how to interpret the graphs you provided.  I feel like...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/11/2019)
Hello Rick,The test code sets the band pass to 0.3Hz to 90Hz.  In addition (and something I should have mentioned), it also sets a notch filter with a (seemingly...

Re: questions of digital filter in a legacy application

Reply posted 5 years ago (02/11/2019)
Hello Rick,Thank you for the link to Grant Griffins contact page.  Would you prefer I first contact Grant before requesting assistance here?  If so then please...
I am supporting a legacy application written in C++.  The application includes source code for a digital filter.  I am trying to understand what type of digital...

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