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《Journal of Nanjing University of Aeronautics & Astronautics》 1992-01
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Precision Analysis on Statical Measurement of Radar Cross Section

Zhao Minggui Huang Tao Shi Weimin (Research Institute of Pilotless Aircraft)  
Some factors which have great effects on the measurement precision of RCS in anechoic chambers, including the noise of background, the coulping between transmitting and receiving antennas and the choice of the standardized objects are discussed in this paper. The condusion that the main measurement errors come from the standardized objects and the support is also presented. Finally two principles are given in order to meet the needs of measurement pricision. (1)The RCS of the targets must be 20dB above that of the background; (2)The support and the standerdized objects should be selected according to the RCS level of the target.By means of these principles, a 200mm×200mm metal plat is used for comparting its theoretical and measured data. Very good results are obtained that verify the correctness of the principles.
【CateGory Index】: TN957. 522;;TN957.
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