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1、雷达与雷达网的目标检测威力模型3,?(?)?e?)?e?8,v?c?100076)va?vdv?w?,?,?e?)?,?y?v(?Nv,?)?y?v(?y?5?h?)?,?,?v?p,?h?r?w?f?v,?C?a?C?w?0?f?v(va?m?vdv?,?;?;?N?p?6?:TN95v?v?m?)?,:ARadarTargetDetectionRangeModelBasedonDetectionProbabilityFANGXue2li,YANGYong2xiang(TheResearchInstituteofEquipmentSystemDevelopmentandEvaluationo
2、fAirForceEquipmentResearchAcademy,v?Beijing100076,China)vaAbstractvdv?Basingonradarequation,radarsystmemparametersanddetectionprobability,aradartargetdetetionrangemodelisconstructed.Themodelcannotonlydescribethetargetdetectionrangeofasingleradar,butalsothatofaradarnetwork.Themodelcanhaveapplicationt
3、othebreakthroughtrackoptimization,thesuccessfulbreakthroughprobabilityandthecorrespond2inglyneededminimunradarcrosssectioncalculationwhenanaircraftbreaksthrougharadarnetwork.vaKeywordsvdradarrange;detectionprobability;radarequation0v?tv?f?0?f?,?n?,?,?h?,?v(?9?K,?)?n?h?,?S?,?f?bv(?f?,?3:?h?3Pf?N,?0?f
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5、p?A?,?b?,?eK=PtGTGR1?2Dn12(41?)3kT0BnFnLsLa(3)?WK?7?E?b?)?,?0?h?bv(?3?,?6?R(2)?3SNR=KRCS/R4(4)?z?3?2?f?n?5?6?1,?o?h?W81?q30?v?q7?Pv?2008?7?;v?v?v?v?v?v?v?v?v?v?ModernRadarv?v?v?v?v?v?v?v?v?v?v?v?v?Vol.30v?No.7July2008v?v?3226v?v?P252:2008022:2008012:,?3?I?6?1v(?I?6?1?3f(x)=x1?2exp-x221?2xF?00x<0(
6、5)?R?p:1?3?y?v(?j?T?R?I?6?1?V?Q?3Pc=FEFs0x2x1?2exp-x221?2dx=21?2(6)?I?6?1?31?0,?)?5?I?6?1,?6?1?31?sv(?3SNR,?oSNR=Ps/P0=1?2s/1?202s=1?20SNR(7)?h?3SNR0?,?3Pf0,?o?NPf0=FEFsTCFARf(x)dx(8)?6?R(5)?R(8),?TCFAR?Pd0?6?E?3TCFAR=-21?20ln(Pf0)(9)Pd0=exp-T2CFAR21?2s(10)?6?R(9)v,?R(7)?R(4)?R(10),?h?R?0?)?3Pd=expl
7、n(Pf)R4KRCS(11)?R?p:1?0?3?j?z?3?,?j?N?p?I?T0v,?z?3?Y?Bn?z?3?Fn?;Pf?3?v(?R(11)?3?h?3R?0?)?,?h?C?3?,?v(2v?)?,?y?6?p?)?,?N?a?f?h?6?1?3,?3?)?3?,?h?p?0?)?v(?jN?a,?6?N?3?1,?2,F?,?N,?,?x?b?3?)?,?v(?q?,?3,?o=f()()?R?p:rn(n=1,2,F?,N)?3?qn?h?:?p?v(?1,?2,F?,?N?h?f?R,?R?3r,?o?qn?h?R?p?,?3Pn(r)=fn(r-rn)(13)?R?p:
8、Pn(r)?3?n?h?r?0?,?;fn(r-rn)?3?6?n?h?0?,?v?h?R?p?P?rn?0?,?v(?R?p?N?h?r?0?S?0?,?S?R?p?N?1,?2,F?,?N?h?r?0?)?3P(r)=1-0PNn=1ve1-Pn(r)vt(14)?6?R(13)?R(14)?P(r)=1-0PNn=1ve1-fn(r-rn)vt(15)?T?R?3?h?R?p,?j?1,?2,F?,?NN?a?h?r?0?,?v(3v?P?R(15)?S?h?:?p?,?y?,?j?:?,?y?5?g?2?3,?9?e?N?P?b?y?q?h,?h?P?p,?6?R?a?v(?P?1v(?1v?P?4?4?0?/W1.0?105?:?I?1?I?0?/dB35?:?S?30?I?z?/dB35?I?/K293?/m0.03?/dB3?z?3?Y?/Hz5.0?106?c/dB8v?v?o?j?R(3)?D?31.79662?1019v(?1?S?:?8?P?1.0?10-6?10m2?)?D?v(?8?h?R?x?R?33?3,?j5?9?(?)?a,?
