Hello zhubajei,
The sa_api version 3.# does not have direct functions for calculating the values you are looking for. We calculate the values directly in the Spike application from the I/Q data received from the saGetIQ functions. I do not believe the two APIs can be used in conjunction.
Calculating these values might be very easy in Labview with the built in functionality.
You will need to collect data with the saGetIQ functions,
then FM demodulate the data. Once you have the FM data, you can perform the necessary statistics on the data, such as averaging the FM array and finding the peaks.
You can see our implementation here
https://github.com/SignalHound/BBApp/blob/master/BBApp/src/model/demod_settings.cpp
In the IQSweep::Demod function, you can see how we demodulate to FM. Then in the IQSweep::CalculateReceiverStats function, between lines 337 – 379, you can see our main FM calculations.
We do our calculations on about 1/4 second of contiguous data.
Regards,
A.J.
