MATLAB Central Newsreader - Raisec Cosine Function

Raisec Cosine Function

Listed Unlisted — Tue, 24 Nov 2009 18:19:21 -0500

I am having hard time trying to find the difference between rcosine and rcosfir. I want to use the Square Root of Raised Cosine Function as the shaping pulse for my QPSK signal. I am wondering what functions should I use and how?

Re: Raisec Cosine Function

Wayne King — Tue, 24 Nov 2009 18:33:21 -0500

"Listed Unlisted" <listedunlisted@yahoo.com> wrote in message <heh839$ll1$1@fred.mathworks.com>...
> I am having hard time trying to find the difference between rcosine and rcosfir. I want to use the Square Root of Raised Cosine Function as the shaping pulse for my QPSK signal. I am wondering what functions should I use and how?

Hi, you can use

fdesign.pulseshaping() with the 'Square Root Raised Cosine' shape.

See

>>doc fdesign.pulseshaping

Hope that helps,
Wayne

Re: Raisec Cosine Function

Listed Unlisted — Wed, 25 Nov 2009 19:43:20 -0500

"Wayne King" <wmkingty@gmail.com> wrote in message <heh8th$d1j$1@fred.mathworks.com>...
> "Listed Unlisted" <listedunlisted@yahoo.com> wrote in message <heh839$ll1$1@fred.mathworks.com>...
> > I am having hard time trying to find the difference between rcosine and rcosfir. I want to use the Square Root of Raised Cosine Function as the shaping pulse for my QPSK signal. I am wondering what functions should I use and how?
>
> Hi, you can use
>
> fdesign.pulseshaping() with the 'Square Root Raised Cosine' shape.
>
> See
>
> >>doc fdesign.pulseshaping
>
>
> Hope that helps,
> Wayne

Thank you for your help.

How to use that function though.

I have I bits and Q bits. And I have plotted it. Now I need to use the Square root of raised cosine function to each of the plots. How should I use it with your function.