星载遥感测深技术初探/汪凌∥测绘科技.—1997,(1).—35～41(武晓莉)CH980935 海洋重力测量线系统平差=MarineGravity Surveying Line System Adjustment[英]/Motal H∥Journal of Geodesy.—1995,70(3).—158～165KoyrNя(1979)和 Tang...星载遥感测深技术初探/汪凌∥测绘科技.—1997,(1).—35～41(武晓莉)CH980935 海洋重力测量线系统平差=MarineGravity Surveying Line System Adjustment[英]/Motal H∥Journal of Geodesy.—1995,70(3).—158～165KoyrNя(1979)和 Tang(1991)都介绍过海洋重力测量中海岸线系统平差的一些通用理论及方法。根据海洋重力测量的特点,提出了一个综合平差的方法。展开更多
Remote sensing technique, replacing conventional sonar bathymetry technique, has become an effective complementary method of mapping submarine terrain where special conditions make the sonar technique difficult to be ...Remote sensing technique, replacing conventional sonar bathymetry technique, has become an effective complementary method of mapping submarine terrain where special conditions make the sonar technique difficult to be carried out. At the same time, as one kind of data set, multispectral remote sensing data has the disadvantage of being influenced by the variable bottom types in shallow seawater, when it is applied in bathymetry. This paper puts forward a new method to extract water depth information from multispectral data, considering the bottom classification and the true water depth accuracy. That is the Principal Component Analysis (PCA) technique based on the bottom classification. By the least square regression with significance, the experiment near Qingdao City has obtained more satisfactory bathymetry accuracy than that of the traditional single-band method, with the mean absolute error about 2.57m.展开更多
文摘星载遥感测深技术初探/汪凌∥测绘科技.—1997,(1).—35～41(武晓莉)CH980935 海洋重力测量线系统平差=MarineGravity Surveying Line System Adjustment[英]/Motal H∥Journal of Geodesy.—1995,70(3).—158～165KoyrNя(1979)和 Tang(1991)都介绍过海洋重力测量中海岸线系统平差的一些通用理论及方法。根据海洋重力测量的特点,提出了一个综合平差的方法。
基金Foundation item: Under the auspices of Scientific Foundation Research Project of the Ministry of Science and Technology and Chinese Academy of Surveying and Mapping (No. F0610)
文摘Remote sensing technique, replacing conventional sonar bathymetry technique, has become an effective complementary method of mapping submarine terrain where special conditions make the sonar technique difficult to be carried out. At the same time, as one kind of data set, multispectral remote sensing data has the disadvantage of being influenced by the variable bottom types in shallow seawater, when it is applied in bathymetry. This paper puts forward a new method to extract water depth information from multispectral data, considering the bottom classification and the true water depth accuracy. That is the Principal Component Analysis (PCA) technique based on the bottom classification. By the least square regression with significance, the experiment near Qingdao City has obtained more satisfactory bathymetry accuracy than that of the traditional single-band method, with the mean absolute error about 2.57m.
