[Discuss-gnuradio] How to measure RSSI via software?

[Mikyung Han]

Hi,
I want to measure RSSI in software.
Searching previous mailing list 
Matt mentioned 3-fold measurement 

-Analog RSSI
-Digital RSSI in FPGA (from output of ADCs)
   -Digital RSSI in host (computed however you like, from the 
channelized signal sent over the bus by the USRP)

I'm not sure which part I should look into.
I greatly appreciate detailed explanation.

Thanks.
-Mikie-