I try to work with example 'qpsktxrx.xls' (simulink) on kit FmcommS3 but i met several problems. Please give me some advices.
1. when i try to demodulate received signal to bits and compare it with the original bits (sending) then result doesnt match.
2. I dont really understand why the transmitter work with 60000 samples/frame (inputchannel/2), and the receiver work with 40000 samples/frame (but sample time is same and = 1/245760*outputchannel), i think if its sample time is same then its frame rate much be diffirent ?
3. In the block selector of receiver, index vector is selected at [1:4000] ? did they just execute downsampling or something?
here is link to this axamle: QPSK Transmit and Receive Example [Analog Devices Wiki]
Any suggestions are welcome and sorry for my English.