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  2. Proportional navigation - Wikipedia

    en.wikipedia.org/wiki/Proportional_navigation

    It is based on the fact that two vehicles are on a collision course when their direct line-of-sight does not change direction as the range closes. PN dictates that the missile velocity vector should rotate at a rate proportional to the rotation rate of the line of sight (Line-Of-Sight rate or LOS-rate), and in the same direction.

  3. Line of sight - Wikipedia

    en.wikipedia.org/wiki/Line_of_sight

    Line-of-sight propagation, electro-magnetic waves travelling in a straight line Non-line-of-sight propagation; Line-of-sight velocity, an object's speed straight towards or away from an observer; Line-of-sight double star, one in which two stars are only coincidentally close together as seen from Earth; Beyond visual line of sight

  4. Line-of-sight propagation - Wikipedia

    en.wikipedia.org/wiki/Line-of-sight_propagation

    Line of sight (LoS) propagation from an antenna. Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves can only travel in a direct visual path from the source to the receiver without obstacles. [1] Electromagnetic transmission includes light emissions traveling in a straight line.

  5. Line of sight (video games) - Wikipedia

    en.wikipedia.org/wiki/Line_of_sight_(video_games)

    A tank behind a tall hill would not be able to see an enemy tank on the other side of the hill. Therefore, the first tank does not have a line of sight to the enemy tank. Conversely, a squad of soldiers atop the hill may be able to see both tanks, though the tanks may not be able to see them (since the tank's upward line of sight is limite

  6. Intercept method - Wikipedia

    en.wikipedia.org/wiki/Intercept_method

    Diagram illustrating the intercept sight reduction process. Suitable bodies for celestial sights are selected, often using a Rude Star Finder. Using a sextant, an altitude is obtained of the Sun, the Moon, a star or a planet. The name of the body and the precise time of the sight in UTC is recorded.

  7. OpenOffice Basic - Wikipedia

    en.wikipedia.org/wiki/OpenOffice_Basic

    Although OpenOffice Basic is similar to other dialects of BASIC, such as Microsoft's Visual Basic for Applications (VBA), the application programming interface (API) is very different, as the example below of a macro illustrates. While there is a much easier way to obtain the "paragraph count" document property, the example shows the ...

  8. Permanent adjustments of theodolites - Wikipedia

    en.wikipedia.org/wiki/Permanent_adjustments_of...

    The line of collimation or line of sight should coincide with axis of the telescope. [1] The line of sight should also be perpendicular to the horizontal axis at its intersection with the vertical axis . Also, the optical axis, the axis of the objective slide, and the line of sight should coincide. Adjustment of horizontal plate levels.

  9. Manual command to line of sight - Wikipedia

    en.wikipedia.org/.../Manual_command_to_line_of_sight

    MCLOS requires considerable training and practice to master, since even a minor disruption in the gunner's concentration would likely cause a miss. These guidance systems have marginal accuracy on tank-sized targets, even with perfect line-of-sight by the gunner, due to erratic flight paths requiring timely manual corrections.