How to make a DDS model using Matlab or System View?

[runny]

dds matlab

hello,everyone!
I'm studying about Direct digital synthesizer,I want to simulate a DDS using Matlab or System View. But I feel it's not easy to make model, So I'd like to know how to make a DDS model.


thank you !

 

[runny]

matlab dds

Who can tell me?

 

[runny]

ddfs output spectrum using matlab

Help me，Please！

 

[x810421]

dds in matlab

i want to know too!

 

[echo47]

dds model

Maybe this will help:
http://www.geocities.com/CapeCanaveral/5611/dds.html

Basically, you repeatedly add a constant to an integer accumulator, and then use the most significant bits of the accumulator as an index into a sinewave lookup table.

 

[runny]

simulating dds in matlab

But i can not link that webpage,who can download it and send it to My E_mail: dl_runny@hotmail.com？

Thanks.

 

[okguy]

direct digital synthesis matlab

Maybe this will help:
h**p://www.geocities.com/CapeCanaveral/5611/dds.html

Basically, you repeatedly add a constant to an integer accumulator, and then use the most significant bits of the accumulator as an index into a sinewave lookup table.

Please, can you upload the ddssim.zip file of that page as well as its useful "paper" ?
... bcos it has diappear from the web ...

 

[rancohen_2000]

dds simulation matlab

here is the file for windows and unix . witch paper do you want?

 

[okguy]

direct digital synthesizer matlab

The paper mentionned in the link is :
Martin Pechanec, "Output Spectrum of a Direct Digital Synthesizer," Graduate course report, Virginia Tech, December 1997.

 

[glen_campbells_dead]

Although this is an old thread, I arrived here looking for a solution because there's not much information out there. I'm guessing others will arrive here too, so I'm going to post what I found.

Making a model turns out to be fairly straightforward. I found a simple model here: https://www.bitweenie.com/listings/matlab-dds/

There's a full Matlab model there. The model looks at quantization effects, but also points to a nice paper by Analog Devices that goes into much more detail about other non-ideal effects.

Hope this helps anyone still searching!