Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

someone no how to implement Gaussian filter.

Status
Not open for further replies.
S

super

Full Member level 2
Joined
Aug 18, 2002
Messages
125
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
904
Dear all:
I need to implement Gaussian filter to do modulation FSK.
Someone know how to implement Gaussian filter in FPGA
or algorithm or code?

Thanks .
 

hi,

go here and do a search with string "gaussian filters"

/http://www.mathworks.com/matlabcentral/fileexchange/loadCategory.do

u ll land up with many. i also think tehre is inbuilt gaussian filters in matlab. u can get an idea from them also.

i managed to get thswe 2 for u. i ll reply incase i get any literature on this stuff. am sure there are many. just go tto search for it! :)

/http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5237&objectType=file
/http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5315&objectType=file

/cedance
 

Gaussian filter is named due to the form of its impulse responce
which is similar to the Gaussian distribution.
Such filter is very simple, its Z responce is equal to

H(z)=(1+Z^-1)^n .
Where n+1 is the filter order.
So it can be implemented without any multiplier.
As a result, the equivalent usual FIR filter has the coefficients
which are equal to the binomial coefficients:
1,2,1 or 1,3,3,1 or 1,4,6,4,1, etc.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top