References
- James Bao-Yen Tsui, Microwave Receivers with Electronic Warfare Applications, John Wiley & Sons, Inc., 1986
- August Golden JR., Radar Electronic Warfare, American Institute of Aeronautics and Astronautics, Inc., 1987
- http://area51sppecialprojects.com/u2_pilots.html
- http://www.fas.org/irp/program/collect/guardrail.htm
- http://www.spyflight.co.uk/ags.htm
- http://www.spacedai;y.com/news/china-03zd.html
- Richard G. Wiley, ELINT, The Intercwption and Analysis of Radar Signals, Artech House, 2006
- F. J. Harris, C. Dick and M. Rice, 'Digital receivers and transmitters using polyphase filter banks for wireless communications', IEEE Trans. Microwave Theory & Tech., vol. l51, no. 4, pp 1395-1412, Apr. 2003
- F. J. Harris, Multirate Signal Processing for Communication Systems, Prentice Hall, 2006
- Stephen E. Lipsky, Microwave Passive Direction Finding, John Wiley & Sons, Inc., 1987