I am interfacing Ni 5640 PCI with the example VI of the modulation toolkit "QAM transceiver" using the instrument driver of PCI 5640 not the labview FPGA driver
My final constellation is with lot of errors.
I am finding problems in setting the parameters of the PCI 5640. I am using the single tone generation VI at transmiter side and Spectrum measurement example Vi at RX side.
parameters I am setting are
at TX:
sampling rate of the complex cluster I am giving to ni 5640 R write waveform is 1600k S/s
IQ rate giving to ni 5640 R configure generation is 1600k S/s
Symbol rate is 100k Hz
pulse shaping root raised cosine using 16 samples per symbol
AT RX:
what should be the span if i see in the example spectrum measurement or the IQ rate at the ni 5640 R configure acquisition
how much samples to acquire?
if my transmitted bits are 1044 and applying 4 QAM on them
how should I resample my received array of IQ data????
PLZ help or give me any example of a transceiver system interfaced with NI 5640r using instrument driver.
