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

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Christian Pérez Sánchez
编辑： Navya Seelam 2020-5-12
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.

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回答（1 个）

Navya Seelam
Navya Seelam 2020-5-12
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 个评论
Christian Pérez Sánchez
Christian Pérez Sánchez 2020-5-12
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 2020-5-12
编辑：Navya Seelam 2020-5-12
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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