简介:Syntheticapertureimaginglidarisanactivenewimagingsystem,whichcanofferafinerazimuthresolutionthantheSARsystem.Anindoorsystemofsyntheticapertureimaginglidarisgiven,whichisademonstrationaboutsyntheticaperturetoimagerotatingobjects.Firstly,thebasicprincipleisintroduced.Then,thebasicmethodandkeytechniquesareanalyzed.Afterthatanimprovedsystemisgivenwiththetransmittingandthereceivinglensapartfromeachotherwhichcaneliminatetheinterferenceefficiently.Finally,theblockdiagramandtheresultofimagingsystemaregiven,whichprovethevalidityofthesystemandthefeasibilityofthesyntheticaperturetechniquesinopticaldomain.
简介:Inordertoobtainthethreedimensional(3D)fluorescencespectradirectlyandrapidlybyinsituandinvivophytoplanktonmonitoring,aprototypeoceanlidarsystemwiththeabilityofmeasuring3Dfluorescencespectraisdeveloped,inwhichanopticalparametricoscillator(OPO)andagratingspectrometerareemployed.Usingthesystem,the3Dfluorescencespectraoffivetypicalred-tidespeciesintheEastChinaSeaaremeasuredinlab.Thepreliminaryexperimentalresultsshowthefeasibilityofmonitoringandclassifyingphytoplanktonbythisoceanlidar.