@article{oai:ir.kagoshima-u.ac.jp:00007667, author = {山中, 有一 and 松野, 保久 and 嶋田, 起宜 and 有馬, 純宏 and 内山, 正樹 and 日高, 正康 and 樺山, 正文}, journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University}, month = {2016-10-28}, note = {By using the LORAN GPS 10X Navigator (Trimble) on board the training ship Kagoshima-Maru, Faculty of Fisheries, Kagoshima University, NAVSTAR GPS fixes (two dimensional mode) were obtained at Port Kelang (Malaysis), Kota Kinabalu (Malaysia) and Kagoshima (Japan). The relative frequency with the less than 10 of HDOP (Horizontal Dilution of Precision) was noted to be 80-90 %, it was under this condition that we obtained good GPS fixes. And drms (root-mean-square radial error) was proportional to HDOP. Time series both of the HDOP and of the geometry of the three satellites were closely related to the time series of the GPS fixes distribution. Accordingly, we could group these time series into four patterns. Yet, some instances occurrred, in which the distributions of GPS fixes at Port Kelang and Kota Kinabalu were different from those in the four patterns. It was assumed that this phenomenon showed characteristic of the GPS fixes distribution near the equator.}, pages = {1--11}, title = {赤道近辺におけるGPS測位分布特性}, volume = {39}, year = {} }