How I can generate a signal of 20 kbps and bandwidth of 25 KHz?

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Christian Pérez Sánchez
Modifié(e) : Navya Seelam le 12 Mai 2020
Hello everyone
I am trying to generate from Bernoulli Binary generator a signal of 20 kbps and a bandwidth of 25 KHz but i don't know how to configure Sample time and samples per frame parameters.
If anyone knows how to implement that i will be very greatful.
Lot of thanks.

Réponses (1)

Navya Seelam
Navya Seelam le 12 Mai 2020
You can generate the signal with datarate of 20kbps by setting the Sample time to 1/20e3 and you can set the samples per frame to 1 (samples per frame doesn't influence the datarate) . Assuming you have mentioned the Occupied Bandwidth to be 25KHz, for datarate of 20kbps Bernoulli Binary generator gives a signal with bandwidth around datarate/2. You cannot configure the bandwidth for a particular datarate using Bernoulli Binary generator.
  2 commentaires
Christian Pérez Sánchez
Christian Pérez Sánchez le 12 Mai 2020
Thank you for your answer, i will apply it.
Regarding the bandwidth, exists some simulink block that let me to establish a 25 KHz bandwidth?
Best regards.
Navya Seelam
Navya Seelam le 12 Mai 2020
Modifié(e) : Navya Seelam le 12 Mai 2020
You can use up-sampling to increase the BW. However this changes the data rate. So, you cannot change the bandwidth without changing the data rate.

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