imeioofthereceivinganteaarrayarerestricted.onthebasisoftheoreticalanalysisoftargetdiffusioninrange-velocityresolutioncell,thearraysignalcovariancematrixandnoisecovariancematrixareestimatedfromsomedifferentcellsreectively.theproceingresultsfromexperimentaldatainohorehfswrwithminimumvariancedistortionlereose(mvdr),multiplesignalclaification(music)andpre-whitenmusicreectivelyshowthatsuper-resolutionmethodscanpr
ovidebetterresolutionthancbf.theorthogonalweightmethodiseffectiveonlyforthecaseofsingletargetandwouldresultinlargeloofthetargetgainwhenthefirstorderseaclutterandtargetwithinthesamedolerresolutioncellareinclosedirection.thereforefundamentalprincipleandmeritofsuper-resolutionmethodfortargetdetectionandresolutioninshiornehfswrareputforward,whichneedsfurtherresearchforpracticalalication.
6.thesuper-resolutionperformanceofmvbandmvdrarequantitativelyanalyzedandtheextendedmvdrisproposed.althoughmvdristhemostpopularsuper-resolutionmethodforatialsourcesresolution,nocompleteandquantitativeanalysisofsuper-resolutionperformanceformvdrhasbeenpresented.forsinglesourceimpingingonthelinear,uniformlyacedarray,severalwidthformulaeformvbdifferentoutputsarederived.furthermore,thesimplearoximateformulaeoftheminimumangularseparation(mas)forresolutionoftwosourceswithequalandunequalstrengthinmvdrarealsogiven,fromwhichthelinearrelatiohipbetweenthenormalizedmasandtherrequiredforresolutioncanbederivedtheoretically.
insum,detectionandestimationofthetargetmergedinthereadingdomainofthe
上一页 [1] [2] [3] [4] [5] [6] [7] 下一页