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

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.

Answer 1

[Navya Seelam]

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.

[Christian Pérez Sánchez]

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]

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.