| 摘要 |
PURPOSE: A flight vehicle position tracking data fusion apparatus and a fusion method using the same are provided to reduce a large amount of errors in an error generation section, thereby improving the position tracking accuracy of a flight vehicle. CONSTITUTION: A tracking position acquisition part(110) acquires position information of a flight vehicle from a radar. A coordinate conversion part(120) converts effective range, high angle, azimuth angle information from the acquired position information respectively into latitude, longitude, and altitude data. A tracking state and signal to noise ratio acquisition part(130) acquires signal to noise ratio information and tracking state from the radar. A fusion source selection part(140) selects an appropriate radar for each tracking time interval using the acquired information through the tracking state and signal to noise ratio acquisition part. A data fusion processing system(150) converts the latitude, longitude, and altitude data into earth-centered fixed spatial coordinates. A coordinate inverse transformation part(160) converts the earth-centered fixed spatial coordinates acquired through the data fusion processing system into latitude, longitude, and altitude data.
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