Spectral matching algorithm is applied , such as spectral angle mapping ( sam ) in section 3 . 4 and cross correlogram spectral matching ( ccsm ) in section 3 . 5 in order to discriminate different dominant species of red tide . the results of sam spectral matching are satisfying : identifications of mesodinium rubrum and leptocylindrus danicus succeed , identification of chattonella marina has wrong possibility and that of skeletonema costatum fails 3 . 4節(jié)將光譜角度制圖( spectralangl “ mapping , sam )這一光譜匹配方法引入赤潮光譜識別研究之中,所進行的赤潮優(yōu)勢種類識別取得了令人較為滿意的結(jié)果:紅色中繞蟲、丹麥細柱藻赤潮的光譜識別取得了成功;海洋褐胞藻赤潮有誤識別的情況發(fā)生;只有中肋骨條藻赤潮的識別失敗。