How to test the BER on a demodulator itself?

[cmosbjt]

I have a new demodulator design. In order to assess the performance I want to simulate/ measure its BER. This is only a demodulator using a simple PLL, no wireless involve. In this case, how to get the BER number from it? I mean either simulation or measurement. Thanks

 

[hmsheng]

You can try to simulate it in ADS using the ptolomy with ENV method. Please be sure noise sources are included in your PLL blocks.

 

[cmosbjt]

thank you.

How to measure the BER?

The input is just a inverter buffer, and the output is the demodulated signal. The modulation is BPSK.

 

[pangpangfish]

I have a new demodulator design. In order to assess the performance I want to simulate/ measure its BER. This is only a demodulator using a simple PLL, no wireless involve. In this case, how to get the BER number from it? I mean either simulation or measurement. Thanks

You need to derive the decision rule for your demodulator and simulate the decision statistics.

 

[hmsheng]

There is a component in ADS named "BER" that is used to compare the input data and the demodulated data to give the ber number. Please search it in ADS documents.

 

[rillyxue]

you can find it in ads examples.

 

[rillyxue]

using ads to simulation it.