UWB Radar Simulation in ADS

[marcomercuri]

I would like to make a UWB Radar simulation in ADS. I don't know expecially how modeling the target, I mean I guess I need some variable delay but I don't know how I can do.

Somebody can help me? Someone has some examples in ADS?

Thanks a lot.

 

[Tom Duke]

Check the examples in ADS. It has examples for both: Radar and UWB(MB-OFDM) .

 

[marcomercuri]

I just found a CW Radar examples but now a UWB Radar. My problem is still in modelling a continuous delay. I mean the UWB pulses have to be reflected off the target moving on a perioding and the continuous low. It means a Frequency Modulation, but I can succeed to do in ADS. Advises??? thanks

 

[Tom Duke]

There is a block, called Dealy in ADS, that adds delay. In its options you can program it to add your periodic delay.

 

[marcomercuri]

are you talking about Analog/RFdesign or DSP modality? I think the delay in ADS cannot be changed as a sinusoid

 

[Tom Duke]

In DSP. Let me recheck it, and I will reply.

 

[marcomercuri]

ok thank you very much

---------- Post added at 15:54 ---------- Previous post was at 15:49 ----------

there is also the possibility to use functions as sffm and put them as parameters but I can succeed

 

[Tom Duke]

I do not know if I have correctly understand your question. Thus I am going to give you my two possible solutions
1)In Common Components there is a block named Delay: Insert in into your design and double click it. Its menu that opens gives you an option about Equation Editor. A new menu opens and tells you to insert the function, in your case the sin function. If you do not how to insert it, use the Simulator Functions Control under it. Furthermore you can do a search in the Search examples using delay and you will find quite a few examples
2)I guess that you probably want to insert some kind of fading in your model. If this is the case, again search with “fading” and there you will lots of examples.

I hope that I have helped you.

 

[marcomercuri]

...I tried putting the equation sffm() but it doesn't work very good, I don't have the good shift, I think he gets just the first value of the sine (that's 0)...moreover I cannot give just a sine cause the dalay cannot be negative so I have to add some DC...however, are you talking about delay in time domain or in numeric domain in DSP modality?

thanks

 

[Tom Duke]

I am talking about delay in time domain. In the equation editor, try to make your delay as you want it.

 

[marcomercuri]

...I did but I'm gonna try it again...thanks a lot...for further problems I'll contact u...thanks

 

[marcomercuri]

Dear Tom, you were talking about VcDelayRF??? I didn't see it last days, I'm doing tests on it and look works...thank u so much for helping me

 

[Tom Duke]

I guess that this can be also do your job.