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Hi @naperman, The number of time steps is unrelated to the bandwidth/sampling rate. As long as the Doppler shift is small compared to the bandwidth, you can probably ignore the spectral growth in your simulations. However, if this is relevant for you, you would need to simulate the whole system at a larger sampling rate. There is a related discussion item #427. |
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I'm trying to figure out how to increase the channel update rate for a high doppler scenario(say$\Delta f_{\text{doppler}}$ = 1000Hz).
Now we calculate the time lags from channel filter for this bandwidth
Now add a doppler shift componant of$\Delta f_{\text{doppler}}$ = 1000Hz to this bandwidth and check the time lags and total number of time steps
We see that the number of time steps has changed.
Numerically, this makes sense as the doppler shift component added to BW is much smaller compared to the BW.
But, my question is the additional number of time steps introduces by l_tot sufficient to deal with most realistic high doppler scenarios or do we need to do anything more to increase channel update rate to simulate such scenarios?
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