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Results tagged with qpsk
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user 17386
Quadrature Phase Shift Keying
0
votes
0
answers
711
views
Sampling rate versus number of sample of I and Q
I am acquiring data of an O-QPSK signal (chip rate : 2Mchip/s) with a SDR. … This effect seem to be produce by the phase offset that the O-QPSK use. Can someone give an explanation about this phenomenon?
[EDIT]
The SDR I am using is the B200 Mini from Ettus Research. …
- 765
0
votes
Accepted
O-QPSK constellation interpretation - GNU Radio
However with fact that we don't real time treatment of the signal, Matlab was finaly most suitable way to resolve the O-QPSK demodulation of the Zigbee signal. …
- 765
2
votes
1
answer
1k
views
O-QPSK constellation interpretation - GNU Radio
I am currently trying to recover the I&Q of a O-QPSK signal generate from the standard XBEE arduino module using a B200. I can get somehow get a "look-like" of a constellation. …
- 765