| 摘要 |
<p>PURPOSE:To calculate a position, a speed, an advancing direction, etc. quickly and with high accuracy, and also to display its value, by automating ranging and operation processing of a range, azimuth information, time information, etc. by a range ring and a azimuth bright line. CONSTITUTION:Signals of a variable range marking circuit 12 and a azimuth bright line forming circuit 14 are inputted to an indicator 6, simultaneously are digitized by a signal processing circuit 24 together with a trigger signal and a reference azimuth signal 22, and are inputted to an input/output controller 26. The controller 26 is controlled by a CPU 28. Video information inputted at a time interval of an operation result by the CPU 28 is stored in a storage device 30. To the controller 26, a signal is applied from a constant picture, that is to say, a tracking part 32 and 34 for its own vessel or other vessel, and this tracking extent becomes a basic data for deriving a position and its variation. As for the controller 26, in accordance with a switching signal of a display switch 36, the signal is applied to a speed indicator 38 and an advancing direction indicator 40 from the controller 26.</p> |
