Can any body explain me the difference in iterative and recursive

logic ??

Actually I am refering to LMS(least mean square) and RLS (Recursive

least square) algorithms...

thanks in advance.

-chinch

Can any body explain me the difference in iterative and recursive

logic ??

Actually I am refering to LMS(least mean square) and RLS (Recursive

least square) algorithms...

thanks in advance.

-chinch

LMS is an "iterative" method to implement the MMSE filter, and RLS is

a "recursive" method to implement the Least Squares (LS) filter. If

you are new to the "adaptive" environment, I'd strongly suggest you

take a look at Simon Haykin's "Adaptive Filter Theory".

-VC.

> Can any body explain me the difference in iterative and recursive

> logic ??

> Actually I am refering to LMS(least mean square) and RLS (Recursive

> least square) algorithms...

> thanks in advance.

> -chinch

Thanks VC...

I m using Haykin's "Adaptive Filter Theory"...but i could not find or

may be understand the difference between recursive and iterative

logic...can you explain me the same ?

-chinch

> LMS is an "iterative" method to implement the MMSE filter, and RLS is

> a "recursive" method to implement the Least Squares (LS) filter. If

> you are new to the "adaptive" environment, I'd strongly suggest you

> take a look at Simon Haykin's "Adaptive Filter Theory".

> -VC.

> > Can any body explain me the difference in iterative and recursive

> > logic ??

> > Actually I am refering to LMS(least mean square) and RLS (Recursive

> > least square) algorithms...

> > thanks in advance.

> > -chinch

Hi Chinch,

I am just a first year CS student and have just been introduced to

recursion. If what I'm posting is way off base and doesn't apply, please

forgive this newbie. The textbook definition is as foollows:

"A function is said to be defined recursively or to be a recursive function

if its rule of definition refers to itself."

We did some simple recursive programming using SML. Here is a recursive

function to find the power of a number where the first argument passed to

the function is the base and the second is the power:

fun power(m,0)=1

| power(m,1)=m

| power(m,n)=m * power(m,n-1);

The first two lines are what is called the basis case, which contain the

exit condition, and the final line is the general case in which the function

refers to itself.

The professor has his lecture notes online at the following address if it'll

help:

http://www.cs.sunysb.edu/~cse113/ref/lecture15.pdf

Your on your own as far as iterative methods goes.

Sincerely,

Joe

1. Help, I am new in the newsgroup

First, hi to everybody...

Second,

I am working on a project which consists in creation of DSP effects such as

hall, stadium etc. using MATLAB, starting from recorded Wav files (not in

real-time, obviously)

I would appreciate any link to sites which describe the principles of hall

and reverb effects, to build some filters in matlab, and to convolve them

with my wav files.

I'm not sure if this newsgroup concerns this kind of topics, but any help

would be very useful

----------------------------------

Luca Negri

Politecnico di Milano, Italy

Computer Engineering

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