| 摘要 |
The invention provides an aircraft navigation system and method of aiding aerial navigation, comprising a global positioning receiver adapted to provide real time longitude, latitude, altitude, heading, velocity, and time data; a minimum safe altitude database for a collection of cells, wherein. each cell represents a geographic area of the earth; an alphanumeric display; and a processor adapted to calculate the minimum safe altitude within a cell corresponding to the real time latitude and longitude of the aircraft and one or more adjacent cells, wherein the processor is connected to and controls the display to indicate the current and projected numeric minimum safe altitude. |
