How to implement Matlab fir1 function in C?

[Jedora]

Hi all,

In Matlab, we use fir1 function to calculate fir filter coefficients.
For example,

fir1(10,0.375)

Outputs are:
ans =

Columns 1 through 10

-0.0019 -0.0133 -0.0161 0.0766 0.2677 0.3742
0.2677 0.0766 -0.0161 -0.0133

Column 11

-0.0019

I wonder how it works and how to implement the fir1(n, wn) function in
C programming language.
Thanks a lot!
Please help!

Jedora.

 

[Barry Schwarz]

Hi all,

In Matlab, we use fir1 function to calculate fir filter coefficients.
For example,

fir1(10,0.375)

Outputs are:
ans =

Columns 1 through 10

-0.0019 -0.0133 -0.0161 0.0766 0.2677 0.3742
0.2677 0.0766 -0.0161 -0.0133

Column 11

-0.0019

I wonder how it works and how to implement the fir1(n, wn) function in
C programming language.

You probably want to start in a newsgroup that discusses the fir
algorithm. After you try to implement it, you can come back here with
your code and ask questions.


Remove del for email

 

[wwwkumar]

Hi Jedora,

Were you able to find out the algorithm for Fir1 .. Let me know incase
you done it.

regards,
Shanu

 

[Jedora]

Hi Jedora,

Were you able to find out the algorithm for Fir1 .. Let me know incase
you done it.

regards,
Shanu

Hi Shanu,

You may find the answer on my blog:
http://xxshi.blogspot.com/2007/06/fir-filter-from-matlab-to-c.html
or
http://xxshi.blogspot.com

Thanks.

Jedora.