unit of IQ samples

RE: unit of IQ samples

Pete W — Sun, 30 Apr 2023 09:23:28 GMT

Ignore that...it had been a long day and I was thinking of phase samples. IQ units must be linear though, not dBm.

RE: unit of IQ samples

Pete W — Sat, 29 Apr 2023 23:51:32 GMT

I doubt you're still hunting for the answer but...the range is (-pi * 64) to (+pi * 64), to the nearest integer, i.e. -201 to +201. This is mentioned in the section about IQ sampling in the radio section of the datasheets. It's angle, so obviously not in dBm, which is power.

RE: unit of IQ samples

Simonr — Wed, 21 Dec 2022 09:25:25 GMT

Please check out this explanation on what exactly IQ data is. The data from our samples is only raw IQ data and it must be converted into vector form to be reviewed properly. We don't have have any specific sample code showing this, but you can check out this page for information on the various formulas used to translate IQ data between polar and rectangular form. Nordic will not provide a Direction Finding algorithm for you I'm afraid.

Best regards,

Simon