[3] ZHANG Yan-Mei. Study on the technique of passive millimeter wave detector［J］. Journal of Beijing institute of technology， 2005， 14 (4):391—395.
[4] ZHANG Guang-Feng，ZHANG Zu-Yin，LOU Guo-Wei. Equivalent radiometric section coefficient of metal solid objects ［C］. 2004 4th International Conference on Microwave and Millimeter Wave Technology Proceedings， 2004，945—947.
[5] Radu C，Wilkerson R. Using fuzzy set theory［J］. Potentials， 1995， 14 (5):33—35.
[6] Zadeh LA. Fuzzy sets ［J］. Information and controe， 1965， 1 (8):338—353.
