HW/SW Codesign QPSK Transmitter and and Receiver Example runing problems

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yang li
yang li 2019-5-9
回答： Neil MacEwen 2019-9-2
HW/SW Codesign QPSK Transmitter and and Receiver Example runing problems
Im using matlab 2017b I have finish the hw sw co dedign demo successfully However, i find that this demo require transmitter keep working during the entire experiment, that is, continuous transmitting. if i stop the transmitter (for example,disable the adi rf som transmitter block for a period of time),the RECIEVER will NOT accept any data even after tx start working again, how can i deal with this problem ps hardware is picozed sdr vivado is 2016.4

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Neil MacEwen
Neil MacEwen 2019-5-9
Hi Yang,
This example has been designed as a streaming system, and the receiver has not been designed to cope with interruptions to the data stream. I'm afraid if you would like to make this suitable for a bursty system, you will need to investigate changes to the receiver yourself.
Regards,
Neil
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Neil MacEwen
Neil MacEwen 2019-5-13
Hi Yang,
I'm afraid the example is the same in R2018b and R2019a. To modify this to a burst-capable example you will need to investigate the changes yourself.
We'll note your requirement and think about future changes.
Kind regards,
Neil
yang li
yang li 2019-8-28
thank you for your answer
ln addition, i find that in demo hw sw co design implementation of ads_b(similiar with qpsk demo), the system runs well at 1090mhz and real plane signals are recieved. that is, the model works well in burst mode (because real plane broadcast ads_b signals in bursty mode)
my question is why this model can run on bursty mode while the qpsk demo can not.
regards

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更多回答（1 个）

Neil MacEwen
Neil MacEwen 2019-9-2
Hi Yang,
The ADS-B model has been designed to work with bursty signals. The QPSK model has been designed to work with streaming signals. To modify this to a burst-capable example you will need to investigate the changes yourself.
Thanks,
Neil

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