References

[1] J. Mitola, The software radio architecture, IEEE Commun. Mag., vol 33, no 5, pp. 26-38, May 1995

[2] P. Kildal, A. Hussain, B. Einarsson, MIMO OTA testing of a communication system using SDRs in a reverberation chamber, IEE Antennas Propag. Mag., vol 57, no 2, pp. 44-53, April 2015

[3] P. Cruz et al., Designing and testing software-defined radio, IEEE Microwave Mag. , vol 11, no 4, pp. 83-94, June 2010.

[4] National Instruments Corporation, Austin, TX, USA. [Online]. Available: http://www.ni.com

[5] Ettus Research, a National Instruments Company. [Online]. Available: http://www.ettus.com

[6] GNU Radio Website. [Online]. Available: http://www.gnuradio.org

[7] P. Forkman et al., Six years of mesospheric CO estimated from ground-based frequency-switched microwave radiometry at 57◦ N compared with satellite instruments, Atmos. Meas Tech., 5, 2827-2841, 2012.

[8] P. Forkman et al., A compact receiver system for simultaneous measurements of mesospheric CO and O3, Geosci. Instrum. Method. Data syst. Discuss., 5, 311-361, 2015.