位置の圏の転位について

概要

論文の詳細を見る
Recently, some methods for direct finding a fix by two position circles were proposed and brought into use. These methods have significant advantages for eliminating errors inherent to the line of position. To apply these methods for non-simultaneous observation, the first position circle is needed to be transferred, but the current method of transfer has some defects which seem not to be negligible in the case of high altitude observation or long distance transfer. The author, hence, contrived a new method of transfer, by which exact solution can be got. That is: (1) Calculate the first estimated distance D_c between the center of first position circle and first D.R.P. (2) Transfer above mentioned two positions according to the distance-run. (3) Calculate the second estimated distance D'_c between above mentioned two transferred positions. (4) D'_o=D_o*D'_c/D_c: where D_o is observed radius. (5) The circle with the radius of D'_o at the center of transferred position circle is the transferred position circle.
社団法人日本航海学会の論文
1988-03-25