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1、 X ( 410073) , , , , , T N 959. 1 + 7 The Study of Target Recognition Based on the Polarization Decomposition Li Dun Xiao Shunping W ang Xuesong Lv T ongguang ( Inst itute of Electronic Engineering , NUDT , Changsha , 410073) Abstract In this paper , the property of radar target in the optics region
2、 is invest igated on the basis of polarimetric and high- resolut ion radar system . By means of polarization decomposit ion theory , one complex target is decom posed in- to three simple targets. Polarization feat ure parameter extracted t o describe the relat ionship of these simple target s is use
3、d in target recognition of four kinds of aircraft . Good results are ebtained . Key words polarization , target recognition , t arget decomposition , , , 1, 6 , , 6, 7, 8 1 , , , , , , , , , 1 1970 , Huynen 2 ( ) , , T Mueller ( ) Sinclair S 3 , S = S HH S HV S VH S VV ( 1) k p = 1 2 S HH + S VV S H
4、H + S HH S HV + S VH i (S HV - S VH ) T ( 2) 21 6 JOU RNAL OF NATIONAL UNIVERSITY OF DEFENSE T ECHNOLOGY Vol. 21 No. 6 1999 X 1999 2 5 : , , 1971 , 4 4 T T = k p k H p ( 3) , , 1 , T 4 4 0, T 3 3 Herm ite T A ( A ) 1 Fig. 1 Antenna coordinates ( ) , , , S A T A S A T A T A , 3 3 Hermite T A 4 : T A = K e 1e 1 H + K 2e 2e 2 H + K 3 e 3e H 3 ( 4) K i (i = 1, 2, 3) T A ,e i (i = 1, 2, 3) T A , ( ) , ,K i (i = 1, 2, 3) , 3 , , T A , ( 4) , ,
